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Accessibility

Karo is built to WCAG 2.1 AA standards. The chat widget is designed to work for all visitors, including those using assistive technology.

What's built in​

  • Keyboard navigation — the entire chat widget is operable without a mouse
  • Screen reader support — all interactive elements have appropriate labels; new messages are announced to screen readers
  • Colour contrast — default colour combinations meet WCAG AA contrast requirements
  • Focus management — focus is handled correctly when the widget opens and closes
  • Reduced motion — animations respect the visitor's prefers-reduced-motion setting

Colour customisation and accessibility​

When you set custom brand colours in Interface settings, make sure your primary colour and text colour combination maintains sufficient contrast. We recommend checking your colours with a contrast tool like WebAIM's Contrast Checker.

SynapTix will flag obvious contrast issues, but the final responsibility for accessible colour choices rests with you.

Language and plain language​

Karo's responses are written in clear, plain language. This benefits all visitors, including those with cognitive disabilities or who are reading in their second language.

Supporting access needs through the agent​

Beyond the widget itself, Karo can actively support visitors with access needs through your knowledge base and agent instructions:

  • Write your accessibility provision into the knowledge base so Karo can answer "Do you have audio described performances?" or "Is the venue step-free?"
  • Use agent instructions to handle specific accessibility workflows — for example, guiding visitors through Nimbus Access card verification for accessible booking

See Agent instructions and persona for more.