Web SDK Accessibility

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The Web SDK chat widget is designed to meet WCAG 2.2 Level AA (ADA AA) standards. This page covers compliance status, supported components, and developer guidelines for maintaining accessibility in customizations.

For a full overview of the SDK, see How the Web SDK Works.

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Compliance Status

Product	Compliance Level
Kore Web SDK	Full compliance — WCAG 2.2 Level AA

For details, see the official WCAG 2.2 documentation or download the Voluntary Product Accessibility Template (VPAT).

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Accessibility Support by Component

Component	Accessible	Preview
Chat Icon	Yes
Chat Window	Yes
Welcome Screen	Yes
Header	Yes
Footer	Yes
Templates	Yes

The SDK is fully compatible with screen readers.

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Themes and Color Contrast

Default light and dark themes maintain a color contrast ratio of 4.5:1 or higher, meeting WCAG 2.2 Level AA out of the box.

For custom themes, follow the Virtual Assistant Theme & Design guidelines. Ensure:

• All color combinations meet minimum contrast ratios (4.5:1 normal text, 3:1 large text and UI elements).
• Interactive elements are clearly distinguishable.
• Focus indicators meet contrast requirements.
• Custom themes are tested with assistive technologies before deployment.

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Developer Guidelines

When customizing or extending the SDK, follow these practices to maintain compliance:

Practice	Requirement
Semantic HTML	Use appropriate HTML5 elements to define structure and meaning
ARIA attributes	Add ARIA roles and attributes for dynamic content and custom controls. See WAI-ARIA Authoring Practices
Keyboard navigation	All interactive elements must be focusable and keyboard-operable in a logical order
Color contrast	Normal text: 4.5:1 minimum; large text and graphics: 3:1 minimum
Text alternatives	Provide alt text for all non-text content (icons, images)
Responsive design	Ensure the widget is accessible across screen sizes and orientations
Testing	Regularly test with tools and assistive technologies (NVDA, JAWS, VoiceOver)

For customization reference, see the Web SDK Customization Documentation.

Accessibility compliance for any customizations made beyond the default SDK is the responsibility of your organization.

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Support

If you encounter an accessibility issue or want to share feedback:

• Email: [e-mail]
• Support portal: https://support.kore.ai

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