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Blazor RangeSlider Accessibility

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

The RangeSlider 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.

Slider accessibility specification

The two focusable elements of the RangeSlider must implement the specification for the Slider component. Here is just one clarification for the use of aria-valuetext attribute:

Selector Attribute Usage
.k-draghandle aria-valuetext Specifies the text that would be announced based on the currently selected values in both handle elements (e.g. aria-valuetext="10 - 50").


WAI-ARIA specification for Slider

Section 508

The RangeSlider is fully compliant with the Section 508 requirements.


The RangeSlider 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 RangeSlider 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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