New to Telerik UI for Blazor? Download free 30-day trial

Blazor ColorPicker Accessibility

Out of the box, the Telerik UI for Blazor ColorPicker provides extensive accessibility support and enables users with disabilities to acquire complete control over its features.

The ColorPicker is compliant with the Web Content Accessibility Guidelines (WCAG) 2.2 AA 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.


This section lists the selectors, attributes, and behavior patterns supported by the component and its composite elements, if any.

The ColorPicker popup contains in itself ColorGradient, ColorPalette, a UI to switch between them, 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.

ColorPicker Wrapping Element

Selector Attribute Usage
.k-colorpicker role=combobox The focusable element of the component should have role combobox (an input with popup).
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-haspopup=dialog Indicates the component has a Dialog Popup.
aria-expanded Announces the state of the visibility of the popup.
aria-controls=.k-colorpicker-popup id Points to the popup element. Signifies that the combobox element controls the dialog.
tabindex=0 The element must be focusable.
.k-invalid,.ng-invalid aria-invalid=true Attribute is rendered only when the picker is in form and announces the valid state of the component.
.k-colorpicker.k-disabled aria-disabled=true Attribute is rendered only when the picker is disabled.

ColorGradient in the Popup

Selector Attribute Usage
.k-colorgradient role=none/undefined The ColorGradient element must have its role removed.
aria-label=undefined The ColorGradient element must have its aria-label attribute removed.
tabindex=-1/undefined The ColorGradient must be removed from the page tab sequence.

Section 508

The ColorPicker is fully compliant with the Section 508 requirements.


The ColorPicker has been extensively tested automatically with axe-core and manually with the most popular screen readers.

To report any accessibility issues, contact the team through the Telerik Support System.

Screen Readers

The ColorPicker has been tested with the following screen readers and browsers combinations:

Environment Tool
Firefox NVDA
Chrome JAWS
Microsoft Edge JAWS

See Also

In this article