Blazor FlatColorPicker Accessibility
The Telerik UI for Blazor FlatColorPicker component is WCAG 2.1 AA and Section 508 compliant. The component also follows the WAI-ARIA best practices for implementing the keyboard navigation for its component role, and is tested against the popular screen readers.
Wai-Aria
The FlatColorPicker contains in itself ColorGradient, ColorPalette, a UI to switch between them, Cancel, Apply, and a button to reset its value. All the containing elements must implement their own specification apart from the ColorGradient element where some changes are required.
FlatColorPicker wrapper
| Selector | Attribute | Usage |
|---|---|---|
| .k-flatcolorpicker | role=textbox |
The focusable wrapper of the component should be considered a textbox. That signifies it has a value that could be submitted. |
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-invalid=true |
Attribute is rendered only when the selected value in the component is not valid against the current validation rules. | |
tabindex=0 |
The element must be focusable. | |
| .k-flatcolorpicker.k-disabled | aria-disabled=true |
Attribute is rendered only when the ColorPalette is disabled. |
ColorGradient
| Selector | Attribute | Usage |
|---|---|---|
| .k-colorgradient | role=none/ |
The ColorGradient element must have its role removed. |
aria-label |
The ColorGradient element must have its aria-label attribute removed. |
|
tabindex=-1/ |
The ColorGradient must be removed from the page tab sequence. |
Section 508
The FlatColorPicker is compliant with the Section 508 requirements
Testing
The component has been extensively tested automatically with static code analyzers and manually with the most popular screen readers.
Any Accessibility Issues could be reported in Telerik Support System.
Screen Readers
| Environment | Tool |
|---|---|
| Firefox | NVDA |
| Chrome | JAWS |
| Microsoft Edge | JAWS |