Spectrum
Color loupe
A color loupe shows the output color that would otherwise be covered by a cursor, stylus, or finger during color selection.
Table of contents#
Anatomy#
Options#
Value#
The value represents the output color (with optional opacity) of one or more color input components (color area, color slider, or color wheel). This is what is being displayed inside the loupe.
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.
| Property | Values | Default Value |
|---|---|---|
| value | color (with optional opacity) | – |
Usage guidelines#
Display combined values#
Color selection usually happens using a variety of input methods (color area, color slider, color wheel). The color loupe should display the final output color: the combined values from multiple color inputs.
The number of input methods is determined by the color space (or “mode”), for example:
- 2 controls: HSL using color wheel (hue) and color area (saturation and lightness)
- 3 controls: RGB using unique color sliders for Red, Green, and Blue
- 4 controls: RGBa using unique color sliders for Red, Green, Blue, and Alpha
Changelog#
| Date | Number | Notes |
|---|---|---|
| May 13, 2020 | 1.0.0 |
|
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.
Coach mark