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137 changes: 128 additions & 9 deletions packages/color-handle/README.md
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Original file line number Diff line number Diff line change
@@ -1,45 +1,164 @@
## Description
## Overview

The `<sp-color-handle>` is used to select a colour on an `<sp-color-area>`, `<sp-color-slider>`, or `<sp-color-wheel>`. It functions similarly to the handle on an `<sp-slider>`.
The `<sp-color-handle>` is used to select a color on an `<sp-color-area>`, `<sp-color-slider>`, or `<sp-color-wheel>`. It provides a draggable control point for precise color selection within color components.

### Usage

[![See it on NPM!](https://img.shields.io/npm/v/@spectrum-web-components/color-handle?style=for-the-badge)](https://www.npmjs.com/package/@spectrum-web-components/color-handle)
[![How big is this package in your project?](https://img.shields.io/bundlephobia/minzip/@spectrum-web-components/color-handle?style=for-the-badge)](https://bundlephobia.com/result?p=@spectrum-web-components/color-handle)

```
**Note**: `<sp-color-handle>` is a primitive component designed to be used within other color selection components. It's not typically used directly in applications, but rather as part of higher-level color components like `<sp-color-area>`, `<sp-color-slider>`, or `<sp-color-wheel>`.

```bash
yarn add @spectrum-web-components/color-handle
```

Import the side effectful registration of `<sp-color-handle>` via:

```
```javascript
import '@spectrum-web-components/color-handle/sp-color-handle.js';
```

When looking to leverage the `ColorHandle` base class as a type and/or for extension purposes, do so via:

```
```javascript
import { ColorHandle } from '@spectrum-web-components/color-handle';
```

## Standard
### Anatomy

The color handle consists of several key parts:

- A visual handle element that indicates the current position
- Touch-responsive interaction areas
- Color display showing the current selected color
- Opacity checkerboard pattern for transparent colors
- An optional `sp-color-loupe` that appears above the handle when the properties `open = true` and `disabled = false`

```html
<sp-color-handle></sp-color-handle>
```

## Disabled
### Options

#### Color

The `color` property sets the visual color displayed within the handle. This accepts any valid CSS color format. The default color is `rgba(255, 0, 0, 0.5)` (semi-transparent red).

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We should add a table of the colors accepted OR we should add a line about how color uses the color-controller and link to the color-controller docs with the table

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Done

For a complete list of supported color formats, see the [ColorController documentation](/tools/color-controller#supported-color-formats).

**Transparency Support**: When using transparent colors, the handle displays an opacity checkerboard pattern background to clearly show the transparency level.

```html
<div style="display: flex; gap: 16px; align-items: center; margin: 16px 0;">
<!-- Hex color -->
<div style="position: relative; height: 20px; margin: 20px;">
<sp-color-handle color="#ff0000"></sp-color-handle>
</div>

<!-- RGB format -->
<div style="position: relative; height: 20px; margin: 20px;">
<sp-color-handle color="rgb(255, 0, 0)"></sp-color-handle>
</div>

<!-- RGBA format with transparency -->
<div style="position: relative; height: 20px; margin: 20px;">
<sp-color-handle color="rgba(255, 0, 0, 0.5)"></sp-color-handle>
</div>

<!-- HSL format -->
<div style="position: relative; height: 20px; margin: 20px;">
<sp-color-handle color="hsl(0, 100%, 50%)"></sp-color-handle>
</div>

<!-- Named colors -->
<div style="position: relative; height: 20px; margin: 20px;">
<sp-color-handle color="red"></sp-color-handle>
</div>
</div>
```

### States

#### Standard

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I dont think this is necessary...? @nikkimk are we showing default states in all components?

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I include the default if I used tabs for a visual comparison, and typically for variants more than states, but it's not necessarily a hill to die on for me.

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I think adding a default let the users compare what is the difference b/w default and other states

The default state of the color handle, ready for interaction:

```html
<sp-color-handle></sp-color-handle>
```

#### Disabled

A disabled color handle shows that the control exists but is not available for interaction. This maintains layout continuity and communicates that the handle may become available later:

```html
<sp-color-handle disabled></sp-color-handle>
```

## Open
#### Open

When the `<sp-color-handle>` uses the `open` property, the `<sp-color-loupe>` component can be used above the handle to show the selected color that would otherwise be covered by a mouse, stylus, or finger on the down/touch state. This can be customized to appear only on finger-input, or always appear regardless of input type.
When the `open` property is set, the `<sp-color-loupe>` component appears above the handle to show the selected color that would otherwise be covered by a mouse, stylus, or finger on the down/touch state. The loupe automatically appears for touch input (`pointerType === 'touch'`).

```html
<div style="height: 72px"></div>
<sp-color-handle open></sp-color-handle>
```

**Automatic Behavior**: The loupe automatically opens when touched and closes when the touch interaction ends. For mouse and stylus input, the loupe remains hidden by default unless explicitly set to `open="true"`.

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This shouldnt be needed, all details should be covered in the first paragraph, make updates there if you feel the wording needs updating

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actually looking in to how this is implemented in other components, this is not automatically configured. we should make sure the examples and docs throughout accurately explain how to use this in a parent component.

color-area implementation of color-handle:
Screenshot 2025-08-05 at 2 00 48 PM

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We are not exposing this to users The streamingListener for internal use only

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but isnt the streamingListener how a consumer using handle to make a new component would set it up for the event handlers? there is not functional code in handle that sets them up

#### Focused

The color handle can receive keyboard focus when used within interactive color components. The focused state is managed automatically by the parent component and is indicated visually:

```html
<sp-color-handle focused></sp-color-handle>
```
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since this is handled in the parent, should this example show more of the implementation pattern versus the output in the DOM?

cc @nikkimk

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I think it's good to include to show what focused state looks like and how it works within the component.


### Behaviors

#### Pointer Interactions

The color handle automatically manages pointer events to provide the optimal user experience:

- **Touch Input**: When touched (`pointerType === 'touch'`), the color loupe automatically appears to prevent the finger from obscuring the selected color
- **Mouse/Stylus Input**: The loupe remains hidden by default for precision pointing devices
- **Pointer Capture**: The handle captures pointer events during interaction to ensure smooth dragging even when the pointer moves outside the handle area
- **Event Handling**: The component listens for `pointerdown`, `pointerup`, and `pointercancel` events to manage the interaction lifecycle

#### Color Display

The handle displays the current color with proper support for transparency:

- Transparent colors are shown with an opacity checkerboard pattern background
- The color updates in real-time as the user interacts with the parent color component
- Supports all standard CSS color formats

For a complete list of supported color formats, see the [ColorController documentation](/tools/color-controller#supported-color-formats).

### Accessibility

The `<sp-color-handle>` is designed to work as part of accessible color selection components:

#### Keyboard Support

While the color handle itself is not directly keyboard accessible, it works in conjunction with its parent components ([`<sp-color-area>`](/components/color-area), [`<sp-color-slider>`](/components/color-slider), [`<sp-color-wheel>`](/components/color-wheel)) which provide comprehensive keyboard navigation.
Example: Keyboard accessibility with `sp-color-area` as parent component

```html
<sp-color-area></sp-color-area>
```

#### Screen Reader Support

The color handle is rendered as a visual indicator and does not directly interface with screen readers. Accessibility is provided through the parent color component's ARIA implementation.

#### Touch Accessibility

- **Color Loupe**: Automatically appears for touch input to ensure the selected color remains visible
- **Large Touch Target**: The handle provides an appropriately sized touch target for mobile interaction
- **Pointer Capture**: Ensures reliable dragging behavior across different touch devices
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What is the size of the touch target?

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The size of sp-color-loupe


#### Focus Management

Focus is managed by the parent color component, with the handle reflecting the focused state visually when its parent component has keyboard focus.
103 changes: 86 additions & 17 deletions tools/reactive-controllers/color-controller.md
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Expand Up @@ -6,33 +6,33 @@ The `ColorController` class is a comprehensive utility for managing and validati

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Color controller should follow the same heading pattern so replace

## Description

### ColorController

with

## Overview

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We can do that in color-controller's ticket

### Features
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To be consistent with other docs, move the Usage section up here, and rename the Features section Anatomy.

Suggested change
### Features
### Usage
[![See it on NPM!](https://img.shields.io/npm/v/@spectrum-web-components/reactive-controllers?style=for-the-badge)](https://www.npmjs.com/package/@spectrum-web-components/reactive-controllers)
[![How big is this package in your project?](https://img.shields.io/bundlephobia/minzip/@spectrum-web-components/reactive-controllers?style=for-the-badge)](https://bundlephobia.com/result?p=@spectrum-web-components/reactive-controllers)
```
yarn add @spectrum-web-components/reactive-controllers
```
Import the `ColorController` via:
```
import {ColorController,} from '@spectrum-web-components/reactive-controllers/src/ColorController.js';
```
### Anatomy
`ColorController` provides the following features:

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We can do that in color-controller's docs audit ticket


- **Color Management**: The `ColorController` allows you to manage color values in multiple formats, including RGB, HSL, HSV, and Hex.
- **Validation**: It provides methods to validate color strings and ensure they conform to the expected formats.
- **Conversion**: The class can convert colors between different color spaces, making it versatile for various applications.
- **State Management**: It maintains the current color state and allows saving and restoring previous color values.
- **Color Management**: The `ColorController` allows you to manage color values in multiple formats, including RGB, HSL, HSV, and Hex.
- **Validation**: It provides methods to validate color strings and ensure they conform to the expected formats.
- **Conversion**: The class can convert colors between different color spaces, making it versatile for various applications.
- **State Management**: It maintains the current color state and allows saving and restoring previous color values.

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Move the example to the Anatomy section.

Suggested change
#### Example
```js
import { LitElement } from 'lit';
import {ColorController} from '@spectrum-web-components/reactive-controllers/src/ColorController.js';
class Host extends LitElement {
/**
* Gets the current color value from the color controller.
*
* @returns {ColorTypes} The current color value.
*/
@property({ type: String })
public get color(): ColorTypes {
return this.colorController.colorValue;
}
/**
* Sets the color for the color controller.
*
* @param {ColorTypes} color - The color to be set.
*/
public set color(color: ColorTypes) {
this.colorController.color = color;
}
private colorController = new ColorController(this, { manageAs: 'hsv' });
}
```
The color Controller could also be initialised in the constructor as shown below
```js
import { LitElement } from 'lit';
import {ColorController} from '@spectrum-web-components/reactive-controllers/src/ColorController.js';
class Host extends LitElement {
/**
* Gets the current color value from the color controller.
*
* @returns {ColorTypes} The current color value.
*/
@property({ type: String })
public get color(): ColorTypes {
return this.colorController.colorValue;
}
/**
* Sets the color for the color controller.
*
* @param {ColorTypes} color - The color to be set.
*/
public set color(color: ColorTypes) {
this.colorController.color = color;
}
private colorController: ColorController; ;
constructor() {
super();
this.colorController = new ColorController(this, { manageAs: 'hsv' });
}
}
```

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We can do that in color-controller's docs audit ticket

### Properties
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Suggested change
### Properties
### Options
#### Properties

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We can do that in color-controller's docs audit ticket


- **`color`**: Gets or sets the current color value. The color can be provided in various formats, including strings, objects, or instances of the `Color` class.
- **`colorValue`**: Gets the color value in various formats based on the original color input.
- **`hue`**: Gets or sets the hue value of the current color.
- **`color`**: Gets or sets the current color value. The color can be provided in various formats, including strings, objects, or instances of the `Color` class.
- **`colorValue`**: Gets the color value in various formats based on the original color input.
- **`hue`**: Gets or sets the hue value of the current color.

### Methods
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Move color formats below the color options.

Suggested change
### Methods
#### Supported Color Formats
The `ColorController` supports a wide range of color formats for input and output:
<sp-table>
<sp-table-head>
<sp-table-head-cell>Format</sp-table-head-cell>
<sp-table-head-cell>Example Values</sp-table-head-cell>
<sp-table-head-cell>Description</sp-table-head-cell>
</sp-table-head>
<sp-table-body>
<sp-table-row>
<sp-table-cell>Hex3</sp-table-cell>
<sp-table-cell><code>#f00</code>, <code>#0a5</code></sp-table-cell>
<sp-table-cell>3-digit hexadecimal</sp-table-cell>
</sp-table-row>
<sp-table-row>
<sp-table-cell>Hex4</sp-table-cell>
<sp-table-cell><code>#f00f</code>, <code>#0a58</code></sp-table-cell>
<sp-table-cell>3-digit hexadecimal + alpha</sp-table-cell>
</sp-table-row>
<sp-table-row>
<sp-table-cell>Hex6</sp-table-cell>
<sp-table-cell><code>#ff0000</code>, <code>#00aa55</code></sp-table-cell>
<sp-table-cell>6-digit hexadecimal</sp-table-cell>
</sp-table-row>
<sp-table-row>
<sp-table-cell>Hex8</sp-table-cell>
<sp-table-cell><code>#ff0000ff</code>, <code>#00aa5580</code></sp-table-cell>
<sp-table-cell>6-digit hexadecimal + alpha</sp-table-cell>
</sp-table-row>
<sp-table-row>
<sp-table-cell>RGB</sp-table-cell>
<sp-table-cell><code>rgb(255, 0, 0)</code>, <code>rgb(0, 170, 85)</code></sp-table-cell>
<sp-table-cell>Red, Green, Blue values (0-255)</sp-table-cell>
</sp-table-row>
<sp-table-row>
<sp-table-cell>RGBA</sp-table-cell>
<sp-table-cell><code>rgba(255, 0, 0, 1)</code>, <code>rgba(0, 170, 85, 0.5)</code></sp-table-cell>
<sp-table-cell>RGB + Alpha channel (0-1)</sp-table-cell>
</sp-table-row>
<sp-table-row>
<sp-table-cell>HSL</sp-table-cell>
<sp-table-cell><code>hsl(0, 100%, 50%)</code>, <code>hsl(150, 100%, 33%)</code></sp-table-cell>
<sp-table-cell>Hue (0-360°), Saturation, Lightness</sp-table-cell>
</sp-table-row>
<sp-table-row>
<sp-table-cell>HSLA</sp-table-cell>
<sp-table-cell><code>hsla(0, 100%, 50%, 1)</code>, <code>hsla(150, 100%, 33%, 0.5)</code></sp-table-cell>
<sp-table-cell>HSL + Alpha channel (0-1)</sp-table-cell>
</sp-table-row>
<sp-table-row>
<sp-table-cell>HSV</sp-table-cell>
<sp-table-cell><code>hsv(0, 100%, 100%)</code>, <code>hsv(150, 100%, 67%)</code></sp-table-cell>
<sp-table-cell>Hue (0-360°), Saturation, Value</sp-table-cell>
</sp-table-row>
<sp-table-row>
<sp-table-cell>HSVA</sp-table-cell>
<sp-table-cell><code>hsva(0, 100%, 100%, 1)</code>, <code>hsva(150, 100%, 67%, 0.5)</code></sp-table-cell>
<sp-table-cell>HSV + Alpha channel (0-1)</sp-table-cell>
</sp-table-row>
<sp-table-row>
<sp-table-cell>Named Colors</sp-table-cell>
<sp-table-cell><code>red</code>, <code>rebeccapurple</code>, <code>darkseagreen</code></sp-table-cell>
<sp-table-cell>CSS color keywords (<a href="https://developer.mozilla.org/en-US/docs/Web/CSS/named-color">full list</a>)</sp-table-cell>
</sp-table-row>
</sp-table-body>
</sp-table>
#### Behaviors

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We can do that in color-controller's docs audit ticket


- **`validateColorString(color: string): ColorValidationResult`**:
Validates a color string and returns the validation result, including the color space, coordinates, alpha value, and validity.
- **`validateColorString(color: string): ColorValidationResult`**:
Validates a color string and returns the validation result, including the color space, coordinates, alpha value, and validity.

- **`getColor(format: string | ColorSpace): ColorObject`**:
Converts the current color to the specified format. Throws an error if the format is not valid.
- **`getColor(format: string | ColorSpace): ColorObject`**:
Converts the current color to the specified format. Throws an error if the format is not valid.

- **`getHslString(): string`**:
Returns the current color in HSL string format.
- **`getHslString(): string`**:
Returns the current color in HSL string format.

- **`savePreviousColor(): void`**:
Saves the current color as the previous color.
- **`savePreviousColor(): void`**:
Saves the current color as the previous color.

- **`restorePreviousColor(): void`**:
Restores the previous color.
- **`restorePreviousColor(): void`**:
Restores the previous color.

## Usage
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Move the Usage section to above Anatomy

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We can do that in color-controller's docs audit ticket


Expand Down Expand Up @@ -118,5 +118,74 @@ class Host extends LitElement {
}

}
```
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Move the Example after the anatomy section and before the options section.

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We can do that in color-controller's docs audit ticket


## Supported Color Formats

The `ColorController` supports a wide range of color formats for input and output:

<sp-table>
<sp-table-head>
<sp-table-head-cell>Format</sp-table-head-cell>
<sp-table-head-cell>Example Values</sp-table-head-cell>
<sp-table-head-cell>Description</sp-table-head-cell>
</sp-table-head>
<sp-table-body>
<sp-table-row>
<sp-table-cell>Hex3</sp-table-cell>
<sp-table-cell><code>#f00</code>, <code>#0a5</code></sp-table-cell>
<sp-table-cell>3-digit hexadecimal</sp-table-cell>
</sp-table-row>
<sp-table-row>
<sp-table-cell>Hex4</sp-table-cell>
<sp-table-cell><code>#f00f</code>, <code>#0a58</code></sp-table-cell>
<sp-table-cell>3-digit hexadecimal + alpha</sp-table-cell>
</sp-table-row>
<sp-table-row>
<sp-table-cell>Hex6</sp-table-cell>
<sp-table-cell><code>#ff0000</code>, <code>#00aa55</code></sp-table-cell>
<sp-table-cell>6-digit hexadecimal</sp-table-cell>
</sp-table-row>
<sp-table-row>
<sp-table-cell>Hex8</sp-table-cell>
<sp-table-cell><code>#ff0000ff</code>, <code>#00aa5580</code></sp-table-cell>
<sp-table-cell>6-digit hexadecimal + alpha</sp-table-cell>
</sp-table-row>
<sp-table-row>
<sp-table-cell>RGB</sp-table-cell>
<sp-table-cell><code>rgb(255, 0, 0)</code>, <code>rgb(0, 170, 85)</code></sp-table-cell>
<sp-table-cell>Red, Green, Blue values (0-255)</sp-table-cell>
</sp-table-row>
<sp-table-row>
<sp-table-cell>RGBA</sp-table-cell>
<sp-table-cell><code>rgba(255, 0, 0, 1)</code>, <code>rgba(0, 170, 85, 0.5)</code></sp-table-cell>
<sp-table-cell>RGB + Alpha channel (0-1)</sp-table-cell>
</sp-table-row>
<sp-table-row>
<sp-table-cell>HSL</sp-table-cell>
<sp-table-cell><code>hsl(0, 100%, 50%)</code>, <code>hsl(150, 100%, 33%)</code></sp-table-cell>
<sp-table-cell>Hue (0-360°), Saturation, Lightness</sp-table-cell>
</sp-table-row>
<sp-table-row>
<sp-table-cell>HSLA</sp-table-cell>
<sp-table-cell><code>hsla(0, 100%, 50%, 1)</code>, <code>hsla(150, 100%, 33%, 0.5)</code></sp-table-cell>
<sp-table-cell>HSL + Alpha channel (0-1)</sp-table-cell>
</sp-table-row>
<sp-table-row>
<sp-table-cell>HSV</sp-table-cell>
<sp-table-cell><code>hsv(0, 100%, 100%)</code>, <code>hsv(150, 100%, 67%)</code></sp-table-cell>
<sp-table-cell>Hue (0-360°), Saturation, Value</sp-table-cell>
</sp-table-row>
<sp-table-row>
<sp-table-cell>HSVA</sp-table-cell>
<sp-table-cell><code>hsva(0, 100%, 100%, 1)</code>, <code>hsva(150, 100%, 67%, 0.5)</code></sp-table-cell>
<sp-table-cell>HSV + Alpha channel (0-1)</sp-table-cell>
</sp-table-row>
<sp-table-row>
<sp-table-cell>Named Colors</sp-table-cell>
<sp-table-cell><code>red</code>, <code>rebeccapurple</code>, <code>darkseagreen</code></sp-table-cell>
<sp-table-cell>CSS color keywords (<a href="https://developer.mozilla.org/en-US/docs/Web/CSS/named-color">full list</a>)</sp-table-cell>
</sp-table-row>
</sp-table-body>
</sp-table>
```
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Move this section above color properties.

Suggested change
```
## Supported Color Formats
The `ColorController` supports a wide range of color formats for input and output:
<sp-table>
<sp-table-head>
<sp-table-head-cell>Format</sp-table-head-cell>
<sp-table-head-cell>Example Values</sp-table-head-cell>
<sp-table-head-cell>Description</sp-table-head-cell>
</sp-table-head>
<sp-table-body>
<sp-table-row>
<sp-table-cell>Hex3</sp-table-cell>
<sp-table-cell><code>#f00</code>, <code>#0a5</code></sp-table-cell>
<sp-table-cell>3-digit hexadecimal</sp-table-cell>
</sp-table-row>
<sp-table-row>
<sp-table-cell>Hex4</sp-table-cell>
<sp-table-cell><code>#f00f</code>, <code>#0a58</code></sp-table-cell>
<sp-table-cell>3-digit hexadecimal + alpha</sp-table-cell>
</sp-table-row>
<sp-table-row>
<sp-table-cell>Hex6</sp-table-cell>
<sp-table-cell><code>#ff0000</code>, <code>#00aa55</code></sp-table-cell>
<sp-table-cell>6-digit hexadecimal</sp-table-cell>
</sp-table-row>
<sp-table-row>
<sp-table-cell>Hex8</sp-table-cell>
<sp-table-cell><code>#ff0000ff</code>, <code>#00aa5580</code></sp-table-cell>
<sp-table-cell>6-digit hexadecimal + alpha</sp-table-cell>
</sp-table-row>
<sp-table-row>
<sp-table-cell>RGB</sp-table-cell>
<sp-table-cell><code>rgb(255, 0, 0)</code>, <code>rgb(0, 170, 85)</code></sp-table-cell>
<sp-table-cell>Red, Green, Blue values (0-255)</sp-table-cell>
</sp-table-row>
<sp-table-row>
<sp-table-cell>RGBA</sp-table-cell>
<sp-table-cell><code>rgba(255, 0, 0, 1)</code>, <code>rgba(0, 170, 85, 0.5)</code></sp-table-cell>
<sp-table-cell>RGB + Alpha channel (0-1)</sp-table-cell>
</sp-table-row>
<sp-table-row>
<sp-table-cell>HSL</sp-table-cell>
<sp-table-cell><code>hsl(0, 100%, 50%)</code>, <code>hsl(150, 100%, 33%)</code></sp-table-cell>
<sp-table-cell>Hue (0-360°), Saturation, Lightness</sp-table-cell>
</sp-table-row>
<sp-table-row>
<sp-table-cell>HSLA</sp-table-cell>
<sp-table-cell><code>hsla(0, 100%, 50%, 1)</code>, <code>hsla(150, 100%, 33%, 0.5)</code></sp-table-cell>
<sp-table-cell>HSL + Alpha channel (0-1)</sp-table-cell>
</sp-table-row>
<sp-table-row>
<sp-table-cell>HSV</sp-table-cell>
<sp-table-cell><code>hsv(0, 100%, 100%)</code>, <code>hsv(150, 100%, 67%)</code></sp-table-cell>
<sp-table-cell>Hue (0-360°), Saturation, Value</sp-table-cell>
</sp-table-row>
<sp-table-row>
<sp-table-cell>HSVA</sp-table-cell>
<sp-table-cell><code>hsva(0, 100%, 100%, 1)</code>, <code>hsva(150, 100%, 67%, 0.5)</code></sp-table-cell>
<sp-table-cell>HSV + Alpha channel (0-1)</sp-table-cell>
</sp-table-row>
<sp-table-row>
<sp-table-cell>Named Colors</sp-table-cell>
<sp-table-cell><code>red</code>, <code>rebeccapurple</code>, <code>darkseagreen</code></sp-table-cell>
<sp-table-cell>CSS color keywords (<a href="https://developer.mozilla.org/en-US/docs/Web/CSS/named-color">full list</a>)</sp-table-cell>
</sp-table-row>
</sp-table-body>
</sp-table>
```

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We can do that in color-controller's docs audit ticket

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