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Back to Web SDK OverviewThe 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.
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.
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.
