beta

ColorSlider

A color slider allows users to adjust an individual channel of a color value.

installyarn add react-aria-components
version1.2.1
usageimport {ColorSlider} from 'react-aria-components'

Example#


import {ColorSlider, ColorThumb, Label, SliderOutput, SliderTrack} from 'react-aria-components';

<ColorSlider channel="hue" defaultValue="hsl(0, 100%, 50%)">
  <Label />
  <SliderOutput />
  <SliderTrack>
    <ColorThumb />
  </SliderTrack>
</ColorSlider>
import {
  ColorSlider,
  ColorThumb,
  Label,
  SliderOutput,
  SliderTrack
} from 'react-aria-components';

<ColorSlider
  channel="hue"
  defaultValue="hsl(0, 100%, 50%)"
>
  <Label />
  <SliderOutput />
  <SliderTrack>
    <ColorThumb />
  </SliderTrack>
</ColorSlider>
import {
  ColorSlider,
  ColorThumb,
  Label,
  SliderOutput,
  SliderTrack
} from 'react-aria-components';

<ColorSlider
  channel="hue"
  defaultValue="hsl(0, 100%, 50%)"
>
  <Label />
  <SliderOutput />
  <SliderTrack>
    <ColorThumb />
  </SliderTrack>
</ColorSlider>
Show CSS
.react-aria-ColorSlider {
  display: grid;
  grid-template-areas: "label output"
                       "track track";
  grid-template-columns: 1fr auto;
  gap: 4px;
  max-width: 300px;

  .react-aria-Label {
    grid-area: label;
  }

  .react-aria-SliderOutput {
    grid-area: output;
  }

  .react-aria-SliderTrack {
    grid-area: track;
    border-radius: 4px;
  }

  &[data-orientation=horizontal] {
    .react-aria-SliderTrack {
      height: 28px;
    }

    .react-aria-ColorThumb {
      top: 50%;
    }
  }
}

.react-aria-ColorThumb {
  border: 2px solid white;
  box-shadow: 0 0 0 1px black, inset 0 0 0 1px black;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  box-sizing: border-box;

  &[data-focus-visible] {
    width: 24px;
    height: 24px;
  }
}
.react-aria-ColorSlider {
  display: grid;
  grid-template-areas: "label output"
                       "track track";
  grid-template-columns: 1fr auto;
  gap: 4px;
  max-width: 300px;

  .react-aria-Label {
    grid-area: label;
  }

  .react-aria-SliderOutput {
    grid-area: output;
  }

  .react-aria-SliderTrack {
    grid-area: track;
    border-radius: 4px;
  }

  &[data-orientation=horizontal] {
    .react-aria-SliderTrack {
      height: 28px;
    }

    .react-aria-ColorThumb {
      top: 50%;
    }
  }
}

.react-aria-ColorThumb {
  border: 2px solid white;
  box-shadow: 0 0 0 1px black, inset 0 0 0 1px black;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  box-sizing: border-box;

  &[data-focus-visible] {
    width: 24px;
    height: 24px;
  }
}
.react-aria-ColorSlider {
  display: grid;
  grid-template-areas: "label output"
                       "track track";
  grid-template-columns: 1fr auto;
  gap: 4px;
  max-width: 300px;

  .react-aria-Label {
    grid-area: label;
  }

  .react-aria-SliderOutput {
    grid-area: output;
  }

  .react-aria-SliderTrack {
    grid-area: track;
    border-radius: 4px;
  }

  &[data-orientation=horizontal] {
    .react-aria-SliderTrack {
      height: 28px;
    }

    .react-aria-ColorThumb {
      top: 50%;
    }
  }
}

.react-aria-ColorThumb {
  border: 2px solid white;
  box-shadow: 0 0 0 1px black, inset 0 0 0 1px black;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  box-sizing: border-box;

  &[data-focus-visible] {
    width: 24px;
    height: 24px;
  }
}

Features#


The <input type="color"> HTML element can be used to build a color picker, however it is very inconsistent across browsers and operating systems and consists of a complete color picker rather than a single color channel slider. ColorSlider helps achieve accessible and touch-friendly color sliders that can be styled as needed.

  • Customizable – Support for adjusting a single channel of RGBA, HSLA, and HSBA colors, in both horizontal and vertical orientations.
  • High quality interactions – Mouse, touch, and keyboard input is supported via the useMove hook. Pressing the track moves the thumb to that position. Text selection and touch scrolling are prevented while dragging.
  • Accessible – Announces localized color descriptions for screen reader users (e.g. "dark vibrant blue"). Uses a visually hidden <input> element for mobile screen reader support and HTML form integration.
  • International – Channel value is formatted according to the user's locale. The color slider automatically mirrors all interactions in right-to-left languages.

Anatomy#


ThumbTrackOutputLabelLabelHue230°

A color slider consists of a track element and a thumb that the user can drag to change a single channel of a color value. It may also include optional label and <output> elements to display the color channel name and current numeric value, respectively. A visually hidden <input> element is used to represent the value to assistive technologies.

import {ColorSlider, ColorThumb, Label, SliderOutput, SliderTrack} from 'react-aria-components';

<ColorSlider>
  <Label />
  <SliderOutput />
  <SliderTrack>
    <ColorThumb />
  </SliderTrack>
</ColorSlider>
import {
  ColorSlider,
  ColorThumb,
  Label,
  SliderOutput,
  SliderTrack
} from 'react-aria-components';

<ColorSlider>
  <Label />
  <SliderOutput />
  <SliderTrack>
    <ColorThumb />
  </SliderTrack>
</ColorSlider>
import {
  ColorSlider,
  ColorThumb,
  Label,
  SliderOutput,
  SliderTrack
} from 'react-aria-components';

<ColorSlider>
  <Label />
  <SliderOutput />
  <SliderTrack>
    <ColorThumb />
  </SliderTrack>
</ColorSlider>

Composed components#

A ColorSlider uses the following components, which may also be used standalone or reused in other components.

Label
A label provides context for an input element.

Reusable wrappers#


If you will use a ColorSlider in multiple places in your app, you can wrap all of the pieces into a reusable component. This way, the DOM structure, styling code, and other logic are defined in a single place and reused everywhere to ensure consistency.

This example wraps ColorSlider and all of its children together into a single component which accepts an optional label prop, which is passed to the right place. It also shows how to use the defaultStyle render prop to add a checkerboard pattern behind partially transparent gradients.

import type {ColorSliderProps} from 'react-aria-components';

interface MyColorSliderProps extends ColorSliderProps {
  label?: string;
}

export function MyColorSlider({ label, ...props }: MyColorSliderProps) {
  return (
    <ColorSlider {...props}>
      <Label>{label}</Label>
      <SliderOutput />
      <SliderTrack
        style={({ defaultStyle }) => ({
          background: `${defaultStyle.background},
            repeating-conic-gradient(#CCC 0% 25%, white 0% 50%) 50% / 16px 16px`
        })}
      >
        <ColorThumb />
      </SliderTrack>
    </ColorSlider>
  );
}

<MyColorSlider label="Red Opacity" defaultValue="#f00" channel="alpha" />
import type {ColorSliderProps} from 'react-aria-components';

interface MyColorSliderProps extends ColorSliderProps {
  label?: string;
}

export function MyColorSlider(
  { label, ...props }: MyColorSliderProps
) {
  return (
    <ColorSlider {...props}>
      <Label>{label}</Label>
      <SliderOutput />
      <SliderTrack
        style={({ defaultStyle }) => ({
          background: `${defaultStyle.background},
            repeating-conic-gradient(#CCC 0% 25%, white 0% 50%) 50% / 16px 16px`
        })}
      >
        <ColorThumb />
      </SliderTrack>
    </ColorSlider>
  );
}

<MyColorSlider
  label="Red Opacity"
  defaultValue="#f00"
  channel="alpha"
/>
import type {ColorSliderProps} from 'react-aria-components';

interface MyColorSliderProps
  extends
    ColorSliderProps {
  label?: string;
}

export function MyColorSlider(
  { label, ...props }:
    MyColorSliderProps
) {
  return (
    <ColorSlider
      {...props}
    >
      <Label>
        {label}
      </Label>
      <SliderOutput />
      <SliderTrack
        style={(
          {
            defaultStyle
          }
        ) => ({
          background:
            `${defaultStyle.background},
            repeating-conic-gradient(#CCC 0% 25%, white 0% 50%) 50% / 16px 16px`
        })}
      >
        <ColorThumb />
      </SliderTrack>
    </ColorSlider>
  );
}

<MyColorSlider
  label="Red Opacity"
  defaultValue="#f00"
  channel="alpha"
/>

Value#


A ColorSlider requires either an uncontrolled default value or a controlled value, provided using the defaultValue or value props respectively. The value provided to either of these props should be a color string or Color object. The channel prop must also be provided to specify which color channel the slider should display. This must be one of the channels included in the color value, for example, for RGB colors, the "red", "green", and "blue" channels are available. For a full list of supported channels, see the Props table below.

Controlled#

In the example below, the parseColor function is used to parse the initial color from an HSL string. This is passed to the value prop to make the ColorSlider controlled, and updated in the onChange event.

import {parseColor} from 'react-aria-components';

function Example() {
  let [value, setValue] = React.useState(parseColor('hsl(0, 100%, 50%)'));
  return (
    <>
      <MyColorSlider
        label="Hue (controlled)"
        value={value}
        onChange={setValue}
        channel="hue" />
      <p>Value: {value.toString('hex')}</p>
    </>
  );
}
import {parseColor} from 'react-aria-components';

function Example() {
  let [value, setValue] = React.useState(
    parseColor('hsl(0, 100%, 50%)')
  );
  return (
    <>
      <MyColorSlider
        label="Hue (controlled)"
        value={value}
        onChange={setValue}
        channel="hue"
      />
      <p>Value: {value.toString('hex')}</p>
    </>
  );
}
import {parseColor} from 'react-aria-components';

function Example() {
  let [value, setValue] =
    React.useState(
      parseColor(
        'hsl(0, 100%, 50%)'
      )
    );
  return (
    <>
      <MyColorSlider
        label="Hue (controlled)"
        value={value}
        onChange={setValue}
        channel="hue"
      />
      <p>
        Value:{' '}
        {value.toString(
          'hex'
        )}
      </p>
    </>
  );
}

HTML forms#

ColorSlider supports the name prop for integration with HTML forms. The value will be submitted as a number between the minimum and maximum value for the displayed channel.

<MyColorSlider
  defaultValue="#7f0000"
  channel="red"
  name="red" />
<MyColorSlider
  defaultValue="#7f0000"
  channel="red"
  name="red" />
<MyColorSlider
  defaultValue="#7f0000"
  channel="red"
  name="red" />

Events#


ColorSlider supports two events: onChange and onChangeEnd. onChange is triggered whenever the ColorSlider's handle is dragged, and onChangeEnd is triggered when the user stops dragging the handle. Both events receive a Color object as a parameter.

The example below uses onChange and onChangeEnd to update two separate elements with the ColorSlider's value.

function Example() {
  let [currentValue, setCurrentValue] = React.useState(
    parseColor('hsl(50, 100%, 50%)')
  );
  let [finalValue, setFinalValue] = React.useState(currentValue);

  return (
    <div>
      <MyColorSlider
        value={currentValue}
        channel="hue"
        onChange={setCurrentValue}
        onChangeEnd={setFinalValue}
      />
      <p>Current value: {currentValue.toString('hsl')}</p>
      <p>Final value: {finalValue.toString('hsl')}</p>
    </div>
  );
}
function Example() {
  let [currentValue, setCurrentValue] = React.useState(
    parseColor('hsl(50, 100%, 50%)')
  );
  let [finalValue, setFinalValue] = React.useState(
    currentValue
  );

  return (
    <div>
      <MyColorSlider
        value={currentValue}
        channel="hue"
        onChange={setCurrentValue}
        onChangeEnd={setFinalValue}
      />
      <p>Current value: {currentValue.toString('hsl')}</p>
      <p>Final value: {finalValue.toString('hsl')}</p>
    </div>
  );
}
function Example() {
  let [
    currentValue,
    setCurrentValue
  ] = React.useState(
    parseColor(
      'hsl(50, 100%, 50%)'
    )
  );
  let [
    finalValue,
    setFinalValue
  ] = React.useState(
    currentValue
  );

  return (
    <div>
      <MyColorSlider
        value={currentValue}
        channel="hue"
        onChange={setCurrentValue}
        onChangeEnd={setFinalValue}
      />
      <p>
        Current value:
        {' '}
        {currentValue
          .toString(
            'hsl'
          )}
      </p>
      <p>
        Final value:{' '}
        {finalValue
          .toString(
            'hsl'
          )}
      </p>
    </div>
  );
}

Creating a color picker#


RGBA#

This example shows how you could build an RGBA color picker using four color sliders bound to the same color value in state. The parseColor function is used to parse the initial color from a hex value, stored in state. The value and onChange props of ColorSlider are used to make the sliders controlled, so that they all update when the color is modified.

function Example() {
  let [color, setColor] = React.useState(parseColor('#ff00ff'));

  return (
    <>
      <MyColorSlider channel="red" value={color} onChange={setColor} />
      <MyColorSlider channel="green" value={color} onChange={setColor} />
      <MyColorSlider channel="blue" value={color} onChange={setColor} />
      <MyColorSlider channel="alpha" value={color} onChange={setColor} />
    </>
  );
}
function Example() {
  let [color, setColor] = React.useState(
    parseColor('#ff00ff')
  );

  return (
    <>
      <MyColorSlider
        channel="red"
        value={color}
        onChange={setColor}
      />
      <MyColorSlider
        channel="green"
        value={color}
        onChange={setColor}
      />
      <MyColorSlider
        channel="blue"
        value={color}
        onChange={setColor}
      />
      <MyColorSlider
        channel="alpha"
        value={color}
        onChange={setColor}
      />
    </>
  );
}
function Example() {
  let [color, setColor] =
    React.useState(
      parseColor(
        '#ff00ff'
      )
    );

  return (
    <>
      <MyColorSlider
        channel="red"
        value={color}
        onChange={setColor}
      />
      <MyColorSlider
        channel="green"
        value={color}
        onChange={setColor}
      />
      <MyColorSlider
        channel="blue"
        value={color}
        onChange={setColor}
      />
      <MyColorSlider
        channel="alpha"
        value={color}
        onChange={setColor}
      />
    </>
  );
}

HSLA#

This example shows how to build a similar color picker to the one above, using HSLA colors instead.

function Example() {
  let [color, setColor] = React.useState(parseColor('hsla(0, 100%, 50%, 0.5)'));

  return (
    <>
      <MyColorSlider channel="hue" value={color} onChange={setColor} />
      <MyColorSlider channel="saturation" value={color} onChange={setColor} />
      <MyColorSlider channel="lightness" value={color} onChange={setColor} />
      <MyColorSlider channel="alpha" value={color} onChange={setColor} />
    </>
  );
}
function Example() {
  let [color, setColor] = React.useState(
    parseColor('hsla(0, 100%, 50%, 0.5)')
  );

  return (
    <>
      <MyColorSlider
        channel="hue"
        value={color}
        onChange={setColor}
      />
      <MyColorSlider
        channel="saturation"
        value={color}
        onChange={setColor}
      />
      <MyColorSlider
        channel="lightness"
        value={color}
        onChange={setColor}
      />
      <MyColorSlider
        channel="alpha"
        value={color}
        onChange={setColor}
      />
    </>
  );
}
function Example() {
  let [color, setColor] =
    React.useState(
      parseColor(
        'hsla(0, 100%, 50%, 0.5)'
      )
    );

  return (
    <>
      <MyColorSlider
        channel="hue"
        value={color}
        onChange={setColor}
      />
      <MyColorSlider
        channel="saturation"
        value={color}
        onChange={setColor}
      />
      <MyColorSlider
        channel="lightness"
        value={color}
        onChange={setColor}
      />
      <MyColorSlider
        channel="alpha"
        value={color}
        onChange={setColor}
      />
    </>
  );
}

HSBA#

This example shows how to build an HSBA color picker.

function Example() {
  let [color, setColor] = React.useState(parseColor('hsba(0, 100%, 50%, 0.5)'));
  return (
    <>
      <MyColorSlider channel="hue" value={color} onChange={setColor} />
      <MyColorSlider channel="saturation" value={color} onChange={setColor} />
      <MyColorSlider channel="brightness" value={color} onChange={setColor} />
      <MyColorSlider channel="alpha" value={color} onChange={setColor} />
    </>
  );
}
function Example() {
  let [color, setColor] = React.useState(
    parseColor('hsba(0, 100%, 50%, 0.5)')
  );
  return (
    <>
      <MyColorSlider
        channel="hue"
        value={color}
        onChange={setColor}
      />
      <MyColorSlider
        channel="saturation"
        value={color}
        onChange={setColor}
      />
      <MyColorSlider
        channel="brightness"
        value={color}
        onChange={setColor}
      />
      <MyColorSlider
        channel="alpha"
        value={color}
        onChange={setColor}
      />
    </>
  );
}
function Example() {
  let [color, setColor] =
    React.useState(
      parseColor(
        'hsba(0, 100%, 50%, 0.5)'
      )
    );
  return (
    <>
      <MyColorSlider
        channel="hue"
        value={color}
        onChange={setColor}
      />
      <MyColorSlider
        channel="saturation"
        value={color}
        onChange={setColor}
      />
      <MyColorSlider
        channel="brightness"
        value={color}
        onChange={setColor}
      />
      <MyColorSlider
        channel="alpha"
        value={color}
        onChange={setColor}
      />
    </>
  );
}

Visual options#


Vertical orientation#

Sliders are horizontally oriented by default. The orientation prop can be set to "vertical" to create a vertical slider. This example also hides the visual label. By default, an aria-label is provided using the localized channel name (e.g. Hue).

<MyColorSlider
  orientation="vertical"
  defaultValue="hsb(0, 100%, 100%)"
  channel="hue" />
<MyColorSlider
  orientation="vertical"
  defaultValue="hsb(0, 100%, 100%)"
  channel="hue" />
<MyColorSlider
  orientation="vertical"
  defaultValue="hsb(0, 100%, 100%)"
  channel="hue"
/>
Show CSS
.react-aria-ColorSlider {
  &[data-orientation=vertical] {
    height: 150px;
    display: block;

    .react-aria-Label,
    .react-aria-SliderOutput {
      display: none;
    }

    .react-aria-SliderTrack {
      width: 28px;
      height: 100%;
    }

    .react-aria-ColorThumb {
      left: 50%;
    }
  }
}
.react-aria-ColorSlider {
  &[data-orientation=vertical] {
    height: 150px;
    display: block;

    .react-aria-Label,
    .react-aria-SliderOutput {
      display: none;
    }

    .react-aria-SliderTrack {
      width: 28px;
      height: 100%;
    }

    .react-aria-ColorThumb {
      left: 50%;
    }
  }
}
.react-aria-ColorSlider {
  &[data-orientation=vertical] {
    height: 150px;
    display: block;

    .react-aria-Label,
    .react-aria-SliderOutput {
      display: none;
    }

    .react-aria-SliderTrack {
      width: 28px;
      height: 100%;
    }

    .react-aria-ColorThumb {
      left: 50%;
    }
  }
}

Disabled#

A ColorSlider can be disabled using the isDisabled prop. This prevents the thumb from being focused or dragged. It's up to you to style your color slider to appear disabled accordingly.

<MyColorSlider channel="red" defaultValue="#7f007f" isDisabled />
<MyColorSlider
  channel="red"
  defaultValue="#7f007f"
  isDisabled
/>
<MyColorSlider
  channel="red"
  defaultValue="#7f007f"
  isDisabled
/>
Show CSS
.react-aria-ColorSlider {
  &[data-disabled] {
    .react-aria-SliderTrack {
      background: gray !important;
    }

    .react-aria-ColorThumb {
      background: gray !important;
      opacity: 0.5;
    }
  }
}
.react-aria-ColorSlider {
  &[data-disabled] {
    .react-aria-SliderTrack {
      background: gray !important;
    }

    .react-aria-ColorThumb {
      background: gray !important;
      opacity: 0.5;
    }
  }
}
.react-aria-ColorSlider {
  &[data-disabled] {
    .react-aria-SliderTrack {
      background: gray !important;
    }

    .react-aria-ColorThumb {
      background: gray !important;
      opacity: 0.5;
    }
  }
}

Labeling#


By default, ColorSlider provides an aria-label for the localized color channel name. If a <Label> element is rendered, its children default to the channel name. If you wish to override this with a more specific label, custom children can be provided to the <Label>, or an aria-label or aria-labelledby prop may be passed instead.

<ColorSlider channel="hue" defaultValue="hsl(0, 100%, 50%)">
  <Label>Background Hue</Label>  <SliderOutput />
  <SliderTrack>
    <ColorThumb />
  </SliderTrack>
</ColorSlider>
<ColorSlider
  aria-label="Background Saturation"  channel="saturation"
  defaultValue="hsl(0, 100%, 50%)">
  <SliderTrack>
    <ColorThumb />
  </SliderTrack>
</ColorSlider>
<ColorSlider channel="hue" defaultValue="hsl(0, 100%, 50%)">
  <Label>Background Hue</Label>  <SliderOutput />
  <SliderTrack>
    <ColorThumb />
  </SliderTrack>
</ColorSlider>
<ColorSlider
  aria-label="Background Saturation"  channel="saturation"
  defaultValue="hsl(0, 100%, 50%)">
  <SliderTrack>
    <ColorThumb />
  </SliderTrack>
</ColorSlider>
<ColorSlider
  channel="hue"
  defaultValue="hsl(0, 100%, 50%)"
>
  <Label>
    Background Hue
  </Label>  <SliderOutput />
  <SliderTrack>
    <ColorThumb />
  </SliderTrack>
</ColorSlider>
<ColorSlider
  aria-label="Background Saturation"  channel="saturation"
  defaultValue="hsl(0, 100%, 50%)"
>
  <SliderTrack>
    <ColorThumb />
  </SliderTrack>
</ColorSlider>

Accessibility#

The aria-valuetext of the <input> element is formatted according to the user's locale automatically. It also includes a localized description of the selected color (e.g. "dark vibrant blue").

Internationalization#

In right-to-left languages, color sliders should be mirrored. The label should be right aligned, and the value should be left aligned. Orientation of the gradient background, positioning of the thumb, and dragging behavior is automatically mirrored by ColorSlider.

Props#


ColorSlider#

NameTypeDefaultDescription
channelColorChannelThe color channel that the slider manipulates.
colorSpaceColorSpace

The color space that the slider operates in. The channel must be in this color space. If not provided, this defaults to the color space of the color or defaultColor value.

orientationOrientation'horizontal'The orientation of the Slider.
isDisabledbooleanWhether the whole Slider is disabled.
valueTThe current value (controlled).
defaultValueTThe default value (uncontrolled).
namestringThe name of the input element, used when submitting an HTML form. See MDN.
childrenReactNode( (values: ColorSliderRenderProps{
defaultChildren: ReactNodeundefined
} )) => ReactNode
The children of the component. A function may be provided to alter the children based on component state.
classNamestring( (values: ColorSliderRenderProps{
defaultClassName: stringundefined
} )) => string
The CSS className for the element. A function may be provided to compute the class based on component state.
styleCSSProperties( (values: ColorSliderRenderProps{
defaultStyle: CSSProperties
} )) => CSSProperties
The inline style for the element. A function may be provided to compute the style based on component state.
Events
NameTypeDescription
onChange( (value: Color )) => voidHandler that is called when the value changes, as the user drags.
onChangeEnd( (value: Color )) => voidHandler that is called when the user stops dragging.
Layout
NameTypeDescription
slotstringnull

A slot name for the component. Slots allow the component to receive props from a parent component. An explicit null value indicates that the local props completely override all props received from a parent.

Accessibility
NameTypeDescription
idstringThe element's unique identifier. See MDN.
aria-labelstringDefines a string value that labels the current element.
aria-labelledbystringIdentifies the element (or elements) that labels the current element.
aria-describedbystringIdentifies the element (or elements) that describes the object.
aria-detailsstringIdentifies the element (or elements) that provide a detailed, extended description for the object.

Label#

A <Label> accepts all HTML attributes.

SliderOutput#

A <SliderOutput> renders the current value of the color slider as text.

Show props
NameTypeDescription
childrenReactNode( (values: SliderRenderProps{
defaultChildren: ReactNodeundefined
} )) => ReactNode
The children of the component. A function may be provided to alter the children based on component state.
classNamestring( (values: SliderRenderProps{
defaultClassName: stringundefined
} )) => string
The CSS className for the element. A function may be provided to compute the class based on component state.
styleCSSProperties( (values: SliderRenderProps{
defaultStyle: CSSProperties
} )) => CSSProperties
The inline style for the element. A function may be provided to compute the style based on component state.

SliderTrack#

The <SliderTrack> component renders a gradient repreresenting the colors that can be selected for the color channel, and contains a <ColorThumb> element.

Show props
NameTypeDescription
childrenReactNode( (values: SliderTrackRenderProps{
defaultChildren: ReactNodeundefined
} )) => ReactNode
The children of the component. A function may be provided to alter the children based on component state.
classNamestring( (values: SliderTrackRenderProps{
defaultClassName: stringundefined
} )) => string
The CSS className for the element. A function may be provided to compute the class based on component state.
styleCSSProperties( (values: SliderTrackRenderProps{
defaultStyle: CSSProperties
} )) => CSSProperties
The inline style for the element. A function may be provided to compute the style based on component state.
Events
NameTypeDescription
onHoverStart( (e: HoverEvent )) => voidHandler that is called when a hover interaction starts.
onHoverEnd( (e: HoverEvent )) => voidHandler that is called when a hover interaction ends.
onHoverChange( (isHovering: boolean )) => voidHandler that is called when the hover state changes.

ColorThumb#

The <ColorThumb> component renders a draggable thumb with a preview of the selected color.

Show props
NameTypeDescription
childrenReactNode( (values: ColorThumbRenderProps{
defaultChildren: ReactNodeundefined
} )) => ReactNode
The children of the component. A function may be provided to alter the children based on component state.
classNamestring( (values: ColorThumbRenderProps{
defaultClassName: stringundefined
} )) => string
The CSS className for the element. A function may be provided to compute the class based on component state.
styleCSSProperties( (values: ColorThumbRenderProps{
defaultStyle: CSSProperties
} )) => CSSProperties
The inline style for the element. A function may be provided to compute the style based on component state.
Events
NameTypeDescription
onHoverStart( (e: HoverEvent )) => voidHandler that is called when a hover interaction starts.
onHoverEnd( (e: HoverEvent )) => voidHandler that is called when a hover interaction ends.
onHoverChange( (isHovering: boolean )) => voidHandler that is called when the hover state changes.

Styling#


React Aria components can be styled in many ways, including using CSS classes, inline styles, utility classes (e.g. Tailwind), CSS-in-JS (e.g. Styled Components), etc. By default, all components include a builtin className attribute which can be targeted using CSS selectors. These follow the react-aria-ComponentName naming convention.

.react-aria-ColorSlider {
  /* ... */
}
.react-aria-ColorSlider {
  /* ... */
}
.react-aria-ColorSlider {
  /* ... */
}

A custom className can also be specified on any component. This overrides the default className provided by React Aria with your own.

<ColorSlider className="my-color-slider">
  {/* ... */}
</ColorSlider>
<ColorSlider className="my-color-slider">
  {/* ... */}
</ColorSlider>
<ColorSlider className="my-color-slider">
  {/* ... */}
</ColorSlider>

In addition, some components support multiple UI states (e.g. focused, placeholder, readonly, etc.). React Aria components expose states using data attributes, which you can target in CSS selectors. For example:

.react-aria-ColorThumb[data-dragging] {
  /* ... */
}

.react-aria-ColorThumb[data-focused] {
  /* ... */
}
.react-aria-ColorThumb[data-dragging] {
  /* ... */
}

.react-aria-ColorThumb[data-focused] {
  /* ... */
}
.react-aria-ColorThumb[data-dragging] {
  /* ... */
}

.react-aria-ColorThumb[data-focused] {
  /* ... */
}

The className and style props also accept functions which receive states for styling. This lets you dynamically determine the classes or styles to apply, which is useful when using utility CSS libraries like Tailwind.

<ColorThumb
  className={({ isDragging }) => isDragging ? 'scale-150' : 'scale-100'}
/>
<ColorThumb
  className={({ isDragging }) =>
    isDragging ? 'scale-150' : 'scale-100'}
/>
<ColorThumb
  className={(
    { isDragging }
  ) =>
    isDragging
      ? 'scale-150'
      : 'scale-100'}
/>

Render props may also be used as children to alter what elements are rendered based on the current state. For example, you could implement custom formatting for the slider's current value.

<SliderOutput>
  {state => `Value: ${state.getThumbValueLabel(0)}`}
</SliderOutput>
<SliderOutput>
  {state => `Value: ${state.getThumbValueLabel(0)}`}
</SliderOutput>
<SliderOutput>
  {(state) =>
    `Value: ${
      state
        .getThumbValueLabel(
          0
        )
    }`}
</SliderOutput>

The states, selectors, and render props for each component used in a ColorSlider are documented below.

ColorSlider#

The ColorSlider component can be targeted with the .react-aria-ColorSlider CSS selector, or by overriding with a custom className. It supports the following states:

NameCSS SelectorDescription
orientation[data-orientation="horizontal | vertical"]The orientation of the color slider.
isDisabled[data-disabled]Whether the color slider is disabled.
stateState of the color slider.

Label#

A Label can be targeted with the .react-aria-Label CSS selector, or by overriding with a custom className.

SliderOutput#

The SliderOutput component can be targeted with the .react-aria-SliderOutput CSS selector, or by overriding with a custom className. It supports the following states:

NameCSS SelectorDescription
orientation[data-orientation="horizontal | vertical"]The orientation of the slider.
isDisabled[data-disabled]Whether the slider is disabled.
stateState of the slider.

SliderTrack#

The SliderTrack component can be targeted with the .react-aria-SliderTrack CSS selector, or by overriding with a custom className. It supports the following states:

NameCSS SelectorDescription
isHovered[data-hovered]Whether the slider track is currently hovered with a mouse.
orientation[data-orientation="horizontal | vertical"]The orientation of the slider.
isDisabled[data-disabled]Whether the slider is disabled.
stateState of the slider.

ColorThumb#

The ColorThumb component can be targeted with the .react-aria-ColorThumb CSS selector, or by overriding with a custom className. It supports the following states:

NameCSS SelectorDescription
colorThe selected color, excluding the alpha channel.
isDragging[data-dragging]Whether this thumb is currently being dragged.
isHovered[data-hovered]Whether the thumb is currently hovered with a mouse.
isFocused[data-focused]Whether the thumb is currently focused.
isFocusVisible[data-focus-visible]Whether the thumb is keyboard focused.
isDisabled[data-disabled]Whether the thumb is disabled.

Advanced customization#


Composition#

If you need to customize one of the components within a ColorSlider, such as Label or SliderOutput, in many cases you can create a wrapper component. This lets you customize the props passed to the component.

function MySliderOutput(props) {
  return <SliderOutput {...props} className="my-slider-output" />
}
function MySliderOutput(props) {
  return (
    <SliderOutput {...props} className="my-slider-output" />
  );
}
function MySliderOutput(
  props
) {
  return (
    <SliderOutput
      {...props}
      className="my-slider-output"
    />
  );
}

Contexts#

All React Aria Components export a corresponding context that can be used to send props to them from a parent element. This enables you to build your own compositional APIs similar to those found in React Aria Components itself. You can send any prop or ref via context that you could pass to the corresponding component. The local props and ref on the component are merged with the ones passed via context, with the local props taking precedence (following the rules documented in mergeProps).

ComponentContextPropsRef
ColorSliderColorSliderContextColorSliderPropsHTMLDivElement

This example shows a ColorSliderDescription component that accepts a color slider in its children and renders a description element below it. It uses the useId hook to generate a unique id for the description, and associates it with the color slider via the aria-describedby attribute passed to the ColorSliderContext provider.

import {ColorSliderContext} from 'react-aria-components';
import {useId} from 'react-aria';

interface ColorSliderDescriptionProps {
  children?: React.ReactNode;
  description?: string;
}

function ColorSliderDescription(
  { children, description }: ColorSliderDescriptionProps
) {
  let descriptionId = useId();
  return (
    <div>
      <ColorSliderContext.Provider
        value={{ 'aria-describedby': descriptionId }}
      >        {children}
      </ColorSliderContext.Provider>
      <small id={descriptionId}>{description}</small>
    </div>
  );
}

<ColorSliderDescription description="It's not easy being green.">
  <MyColorSlider channel="green" defaultValue="#006" />
</ColorSliderDescription>
import {ColorSliderContext} from 'react-aria-components';
import {useId} from 'react-aria';

interface ColorSliderDescriptionProps {
  children?: React.ReactNode;
  description?: string;
}

function ColorSliderDescription(
  { children, description }: ColorSliderDescriptionProps
) {
  let descriptionId = useId();
  return (
    <div>
      <ColorSliderContext.Provider
        value={{ 'aria-describedby': descriptionId }}
      >        {children}
      </ColorSliderContext.Provider>
      <small id={descriptionId}>{description}</small>
    </div>
  );
}

<ColorSliderDescription description="It's not easy being green.">
  <MyColorSlider channel="green" defaultValue="#006" />
</ColorSliderDescription>
import {ColorSliderContext} from 'react-aria-components';
import {useId} from 'react-aria';

interface ColorSliderDescriptionProps {
  children?:
    React.ReactNode;
  description?: string;
}

function ColorSliderDescription(
  {
    children,
    description
  }: ColorSliderDescriptionProps
) {
  let descriptionId =
    useId();
  return (
    <div>
      <ColorSliderContext.Provider
        value={{
          'aria-describedby':
            descriptionId
        }}
      >        {children}
      </ColorSliderContext.Provider>
      <small
        id={descriptionId}
      >
        {description}
      </small>
    </div>
  );
}

<ColorSliderDescription description="It's not easy being green.">
  <MyColorSlider
    channel="green"
    defaultValue="#006"
  />
</ColorSliderDescription>

Custom children#

ColorSlider passes props to its child components, such as the label, via their associated contexts. These contexts are exported so you can also consume them in your own custom components. This enables you to reuse existing components from your app or component library together with React Aria Components.

ComponentContextPropsRef
LabelLabelContextLabelPropsHTMLLabelElement

This example consumes from LabelContext in an existing styled label component to make it compatible with React Aria Components. The useContextProps hook merges the local props and ref with the ones provided via context by ColorSlider.

import type {LabelProps} from 'react-aria-components';
import {LabelContext, useContextProps} from 'react-aria-components';

const MyCustomLabel = React.forwardRef(
  (props: LabelProps, ref: React.ForwardedRef<HTMLLabelElement>) => {
    // Merge the local props and ref with the ones provided via context.
    [props, ref] = useContextProps(props, ref, LabelContext);
    // ... your existing Label component
    return <label {...props} ref={ref} />;
  }
);
import type {LabelProps} from 'react-aria-components';
import {
  LabelContext,
  useContextProps
} from 'react-aria-components';

const MyCustomLabel = React.forwardRef(
  (
    props: LabelProps,
    ref: React.ForwardedRef<HTMLLabelElement>
  ) => {
    // Merge the local props and ref with the ones provided via context.
    [props, ref] = useContextProps(
      props,
      ref,
      LabelContext
    );
    // ... your existing Label component
    return <label {...props} ref={ref} />;
  }
);
import type {LabelProps} from 'react-aria-components';
import {
  LabelContext,
  useContextProps
} from 'react-aria-components';

const MyCustomLabel =
  React.forwardRef(
    (
      props: LabelProps,
      ref:
        React.ForwardedRef<
          HTMLLabelElement
        >
    ) => {
      // Merge the local props and ref with the ones provided via context.
      [props, ref] =
        useContextProps(
          props,
          ref,
          LabelContext
        );
      // ... your existing Label component
      return (
        <label
          {...props}
          ref={ref}
        />
      );
    }
  );

Now you can use MyCustomLabel within a ColorSlider, in place of the builtin React Aria Components Label.

<ColorSlider>
  <MyCustomLabel>Opacity</MyCustomLabel>  <SliderTrack>
    <ColorThumb />
  </SliderTrack>
</ColorSlider>
<ColorSlider>
  <MyCustomLabel>Opacity</MyCustomLabel>  <SliderTrack>
    <ColorThumb />
  </SliderTrack>
</ColorSlider>
<ColorSlider>
  <MyCustomLabel>
    Opacity
  </MyCustomLabel>  <SliderTrack>
    <ColorThumb />
  </SliderTrack>
</ColorSlider>

State#

ColorSlider provides a ColorSliderState object to its children via ColorSliderStateContext. This can be used to access and manipulate the slider's state.

This example shows a ColorNumberField component that can be placed within a ColorSlider to allow the user to enter a number and update the channel value.

import {ColorSliderStateContext, Input, LabelContext, NumberField, useSlottedContext} from 'react-aria-components';

function ColorNumberField({ channel }) {
  let state = React.useContext(ColorSliderStateContext)!;  let labelProps = useSlottedContext(LabelContext)!;
  return (
    <NumberField
      aria-labelledby={labelProps.id}
      value={state.value.getChannelValue(channel)}
      minValue={state.value.getChannelRange(channel).minValue}
      maxValue={state.value.getChannelRange(channel).maxValue}
      onChange={(v) => state.setValue(state.value.withChannelValue(channel, v))}
      formatOptions={state.value.getChannelFormatOptions(channel)}
    >
      <Input />
    </NumberField>
  );
}

<ColorSlider channel="hue" defaultValue="hsl(0, 100%, 50%)">
  <Label />
  <ColorNumberField channel="hue" />  <SliderTrack>
    <ColorThumb />
  </SliderTrack>
</ColorSlider>
import {
  ColorSliderStateContext,
  Input,
  LabelContext,
  NumberField,
  useSlottedContext
} from 'react-aria-components';

function ColorNumberField({ channel }) {
  let state = React.useContext(ColorSliderStateContext)!;  let labelProps = useSlottedContext(LabelContext)!;
  return (
    <NumberField
      aria-labelledby={labelProps.id}
      value={state.value.getChannelValue(channel)}
      minValue={state.value.getChannelRange(channel)
        .minValue}
      maxValue={state.value.getChannelRange(channel)
        .maxValue}
      onChange={(v) =>
        state.setValue(
          state.value.withChannelValue(channel, v)
        )}
      formatOptions={state.value.getChannelFormatOptions(
        channel
      )}
    >
      <Input />
    </NumberField>
  );
}

<ColorSlider
  channel="hue"
  defaultValue="hsl(0, 100%, 50%)"
>
  <Label />
  <ColorNumberField channel="hue" />  <SliderTrack>
    <ColorThumb />
  </SliderTrack>
</ColorSlider>
import {
  ColorSliderStateContext,
  Input,
  LabelContext,
  NumberField,
  useSlottedContext
} from 'react-aria-components';

function ColorNumberField(
  { channel }
) {
  let state = React
    .useContext(
      ColorSliderStateContext
    )!;  let labelProps =
    useSlottedContext(
      LabelContext
    )!;
  return (
    <NumberField
      aria-labelledby={labelProps
        .id}
      value={state.value
        .getChannelValue(
          channel
        )}
      minValue={state
        .value
        .getChannelRange(
          channel
        ).minValue}
      maxValue={state
        .value
        .getChannelRange(
          channel
        ).maxValue}
      onChange={(v) =>
        state.setValue(
          state.value
            .withChannelValue(
              channel,
              v
            )
        )}
      formatOptions={state
        .value
        .getChannelFormatOptions(
          channel
        )}
    >
      <Input />
    </NumberField>
  );
}

<ColorSlider
  channel="hue"
  defaultValue="hsl(0, 100%, 50%)"
>
  <Label />
  <ColorNumberField channel="hue" />  <SliderTrack>
    <ColorThumb />
  </SliderTrack>
</ColorSlider>
Show CSS
.react-aria-Input {
  width: 4ch;
}
.react-aria-Input {
  width: 4ch;
}
.react-aria-Input {
  width: 4ch;
}

Hooks#

If you need to customize things even further, such as accessing internal state or customizing DOM structure, you can drop down to the lower level Hook-based API. See useColorSlider for more details.