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Blazor FlatColorPicker Accessibility

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

The FlatColorPicker 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 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 Wrapping Element

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.


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 fully compliant with the Section 508 requirements.


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

Environment Tool
Firefox NVDA
Chrome JAWS
Microsoft Edge JAWS

See Also

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