Accessibility Support
Out of the box, the Telerik and Kendo UI ColorPalette provides extensive accessibility support and enables users with disabilities to acquire complete control over its features.
The ColorPalette is compliant with the Web Content Accessibility Guidelines (WCAG) 2.2 standards and Section 508 requirements, follows the Web Accessibility Initiative - Accessible Rich Internet Applications (WAI-ARIA) best practices for implementing the keyboard navigation for its component role, provides options for managing its focus and is tested against the most popular screen readers.
WAI-ARIA
This section lists the selectors, attributes, and behavior patterns supported by the component and its composite elements, if any.
| Selector | Attribute | Usage |
|---|---|---|
.k-colorpalette | role=grid | The focusable wrapper of the component should announce its role as a grid. |
aria-label or aria-labelledby | The component needs an accessible name to be assigned to it. Must also include the currently selected value in the component. | |
aria-activedescendant=.k-colorpalette-tile.k-focus id | Points to the focused cell in the table. The focused cell is changed via keyboard navigation. | |
tabindex=0 | The element must be focusable. | |
.k-colorpalette.k-disabled | aria-disabled=true | Attribute is rendered only when the ColorPalette is disabled. |
.k-colorpalette-table | role=none/presentation | Negates the default role of the element, as it is wrapped within a role="grid" element. |
.k-colorpalette-table>tbody>tr | role=row | Required as the semantic role of its parent <table> has been removed. |
.k-colorpalette-tile | role=gridcell | Required as the semantic role of its parent <table> has been removed. |
aria-label or title | The text representation of the color value for the current cell. | |
.k-colorpalette-tile.k-selected | aria-selected=true | Present on the currently selected cell in the component. |
Keyboard Shortcuts
| Shortcut | Behavior |
|---|---|
Down Arrow | Focuses the next cell below. |
Up Arrow | Focuses the next cell above. |
Right Arrow | Focuses the next cell on the right. |
Left Arrow | Focuses the next cell on the left. |
Enter | Selects the color from the currently focused cell. |
Testing
The ColorPalette has been extensively tested automatically with axe-core and manually with the most popular screen readers.
Screen Readers
The ColorPalette has been tested with the following screen readers and browsers combinations:
| Environment | Tool |
|---|---|
| Firefox | NVDA |
| Chrome | JAWS |
| Microsoft Edge | JAWS |
