`<channel-slider>`

A <color-slider> for a specific channel, intended for color picking.

Usage

This is a higher level component than <color-slider> for the cases where you want to control a single channel of a color space. It offers many conveniences for these cases:

It takes care of applying the right min and max values to the slider
It automatically generates the start and end colors,
It can provide an editable tooltip as a tooltip that both shows and edits the current value
Already includes a suitable label

Basic example:

<channel-slider space="oklch" channel="h"></channel-slider>

In most cases you’d also want to set a color to set the other channels and the initial value:

<channel-slider space="oklch" channel="h" color="oklch(80% 20% 130)"></channel-slider>

You can listen to the input event and grab the color property to get the current color value. Here we are using a <color-inline> to not just display the CSS code but also the actual color:

<channel-slider space="oklch" channel="h" color="oklch(50% 50% 180)"
                oninput="this.nextElementSibling.textContent = this.color"></channel-slider>
<color-inline></color-inline>

This will automatically use the whole reference range of that component in the specified color space, and use the current value of the component as the starting value (unless value is also specified). If you don’t want to show the whole range you can also specify min and max attributes.

Reference

Attributes & Properties

Attribute	Property	Property type	Default value	Description
`space`	`space`	`ColorSpace` \| `string`	`oklch`	The color space to use for interpolation.
`channel`	`channel`	`string`	`h`	The component to use for the gradient.
`min`	`min`	`number`	`this.refRange[0]`	The minimum value for the slider.
`max`	`max`	`number`	`this.refRange[1]`	The maximum value for the slider.
`value`	`value`	`number`	`(this.min + this.max) / 2`	The current value of the slider.
`color`	`color`	`Color` \| `string`	`oklch(50 50% 180)`	The current color value.
-	`minColor`	`Color`	`oklch(0 50% 180)`	The minimum color value (read-only).
-	`maxColor`	`Color`	`oklch(100 50% 180)`	The maximum color value (read-only).

Installation

To install all color elements, check out the instructions on the homepage. The rest of this section is about using only <channel-slider>.

The quick and dirty way is straight from the CDN (kindly provided by Netlify):

<script src="https://elements.colorjs.io/channel-slider/channel-slider.js" type="module"></script>

or in JS:

import "https://elements.colorjs.io/channel-slider/channel-slider.js";

If you are using npm to manage your dependencies, you can import it via:

import "color-elements/channel-slider";

or:

import { ChannelSlider } from "color-elements";