Out of the box, the Kendo React ColorGradient provides extensive accessibility support and enables users with disabilities to acquire complete control over its features.


The ColorGradient is compliant with the [Web Content Accessibility Guidelines (WCAG) 2.2 AA](https://www.w3.org/TR/WCAG22/) standards and [Section 508](https://www.section508.gov/) requirements, follows the [Web Accessibility Initiative - Accessible Rich Internet Applications (WAI-ARIA)](https://www.w3.org/WAI/ARIA/apg/) best practices for implementing the [keyboard navigation](#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.

### ColorGradient Wrapping Element

| Selector | Attribute | Usage |
| -------- | --------- | ----- |
| `.k-colorgradient` | `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-colorgradient.k-disabled` | `aria-disabled=true` | Attribute is rendered only when the ColorPalette is disabled. |

### Drag handles


All the `k-draghandle` elements implement the **Slider** specification.

[Slider accessibility specification]({{slider_a11y_link}})


Apart from that the HSV draghandle must also cover the following additional requirements:

| Selector | Attribute | Usage |
| -------- | --------- | ----- |
| `.k-hsv-draghandle` | `aria-orientation=undefined` | The implicit orientation for the `role="slider"` must be removed. |
|  | `aria-label` | Must provide information about the purpose of the `slider` (for example: "Color well with two-dimensional slider for selecting saturation and lightness") and the currently selected color (for example: "X: 142, Y: 93"). |
|  | `aria-valuetext` | Must specify the values on both X and Y axis. |

### NumericTextBoxes


The Numeric inputs must implement the **NumericTextBox** specification.

[NumericTextBox accessibility specification]({{numerictextbox_a11y_link}})


Here is one additional requirement for those numerics as their visible labels have only a single letter as text:

| Selector | Attribute | Usage |
| -------- | --------- | ----- |
| `.k-numerictextbox>.k-input-inner` | `aria-label` | Must provide information about the numeric input purpose - the name of the chanel it is aimed at (`red chanel`, `green chanel`, `blue chanel`, or `alpha chanel`). |

## Section 508


The ColorGradient is fully compliant with the [Section 508 requirements](http://www.section508.gov/).

## Testing


The ColorGradient has been extensively tested automatically with [axe-core](https://github.com/dequelabs/axe-core) and manually with the most popular screen readers.

> To report any accessibility issues, contact the team through the [Telerik Support System](https://www.telerik.com/account/support-center).

### Screen Readers


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

| Environment | Tool |
| ----------- | ---- |
| Firefox | NVDA |
| Chrome | JAWS |
| Microsoft Edge | JAWS |