Skip to main content
UI/UX patterns critical

Web Accessibility Best Practices

WCAG 2.2 AA compliance, ARIA usage, keyboard navigation, screen reader support, color contrast, and semantic HTML based on W3C WAI, WebAIM, and MDN.

Difficulty
intermediate
Read time
1 min read
Version
v1.0.0
Confidence
established
Last updated

Quick Reference

Use semantic HTML first (button, nav, main, header). Only add ARIA when native HTML lacks semantics. Keyboard: all interactive elements focusable with Tab, activated with Enter/Space. Focus visible with 3:1 contrast. Color contrast: 4.5:1 for text, 3:1 for UI components. Skip link to main content. Test with NVDA/VoiceOver.

Use When

  • Building any web interface
  • Creating interactive components
  • Working with forms and navigation
  • Adding dynamic content
  • Ensuring legal compliance

Skip When

  • Internal tools exempt from accessibility laws (rare)

Web Accessibility Best Practices

WCAG 2.2 AA compliance, ARIA usage, keyboard navigation, screen reader support, color contrast, and semantic HTML based on W3C WAI, WebAIM, and MDN.

Tags

accessibility wcag aria keyboard screen-reader a11y

Discussion