Color slider
A color slider lets users visually change an individual channel of a color.
Anatomy#
Options#
Background#
The background of the color slider is a visual representation of the range of values a user can select from. This can represent color properties such as hues, color channel values (such as RGB or CMYK levels), or opacity. The exact format this background property takes will depend on what implementation you are working with. Some examples of the format include image, canvas, and gradient.
Value, min value, max value, step#
The value is the number selected within the color slider’s range, from the min value to max value.
The min and max values also can be customized appropriately for what the color slider is being used for (such as 0 to 360 for hue). By default, the min value starts at 0 and max value is set to 100.
The step refers to the increment by which these values increase or decrease. A step value of 1 (default) allows a user to only select whole numbers within the min and max range.
Orientation#
Color sliders can be either in horizontal or vertical orientation. By default, a color slider is horizontal and should be used when vertical space is more limited. The vertical orientation is used when horizontal space is more limited.
Length#
The length of a color slider is size-2400 (192 px on desktop, 240 px on mobile) by default, but can be customized appropriately for its context. It has a fixed thickness of size-300 (24 px on desktop, 30 px on mobile).
Disabled#
A color slider in a disabled state shows that an input exists, but is not available in that circumstance. This can be used to maintain layout continuity and communicate that a slider may become available later.
Table of options#
From the design point of view, each component has a number of options. These options and their names are platform agnostic, and each implementation should adapt these to fit into their framework.
Behaviors#
Keyboard focus#
A color slider can be navigated using a keyboard. The keyboard focus state enlarges the handle to be twice as large.
Handle behavior#
Unlike the slider itself, the color slider’s handle can slide all the way to the edge of the track. It always displays the selected color inside the handle and never gets cut off by the track or any container.
Minimum length#
A color slider’s minimum length is size-1000 (80 px on desktop, 100 px on mobile).
Usage guidelines#
Include labels#
Color sliders should be labeled and, when applicable, be accompanied by text fields. In a context when labeling each individual slider may be redundant, make sure to still label the group of sliders (e.g., “RGB,” “HSB,” etc.)
Display color selection#
When using color sliders, it’s important to clearly display the color selection in real time. It can be in a color swatch, directly on the canvas, or both.
Color loupe on down/touch state#
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Keyboard interactions#
Changelog#
- Updated all colors to 6.0.0
- Removed color loupe (separated into its own component)
- Added background option
- Added value, min and max values, step options
- Added length option
- Updated handle border transparency to meet minimum contrast ratio
- This component has been included to the website.
Design checklist#
All interactive states
Includes all interactive states that are applicable (hover, down, focus, keyboard focus, disabled).
All color themes
Works properly across all four color themes (lightest, light, dark, darkest).
All platform scales
Includes a desktop scale (UWP, macOS, web desktop) and a mobile scale (iOS, Android, web mobile).
Accessible use of color
Color is not used as the only visual means of conveying information (WCAG 2.0 1.4.1).
Accessible contrast for text
Text has a contrast ratio of at least 4.5:1 for small text and at least 3:1 for large text (WCAG 2.0 1.4.3).
Accessible contrast for UI components
Visual information required to identify components and states (except inactive components) has a contrast ratio of at least 3:1 (WCAG 2.1 1.4.11).
Content design
UI language and information design considerations have been incorporated into component design.
Defined options
Includes relevant options (variant, style, size, orientation, optional iconography, decorations, selection, error state, etc.)
Defined behaviors
Includes guidelines for keyboard focus, layout (wrapping, truncation, overflow), animation, interactions, etc.
Usage guidelines
Includes a list of dos and don'ts that highlight best practices and common mistakes.
Writing guidelines
Includes content standards or usage guidelines for how to write or format in-product content for the component.
Internationalization guidelines
Works properly across various locales and includes guidelines for bi-directionality (RTL).
Keyboard interactions
Follows WCAG 2.0 standards for keyboard accessibility guidelines and includes a description of the keyboard interactions.
Design tokens
All design attributes (color, typography, layout, animation, etc.) are available as design tokens.
UI kit
Includes a downloadable XD file that shows multiple options, states, color themes, and platform scales.
Generated UI kit
Includes a downloadable XD file, generated by code using design tokens defined in Spectrum DNA, and shows multiple options, states, color themes, and platform scales.
In Spectrum for Adobe XD plugin
Component is included in the Spectrum for Adobe XD plugin.