a11y-accessibility-design
Skill4 starsChanged 3 months agoApache-2.0View on GitHub
Web accessibility (a11y) design fundamentals based on WCAG 2.2 AA. Covers the POUR principles (Perceivable, Operable, Understandable, Robust), color contrast requirements, keyboard navigation, focus management, screen reader support, and a practical pre-ship checklist. Use when designing accessible interfaces, auditing for a11y compliance, or building inclusive products. Triggers on: "accessibility", "a11y", "WCAG", "screen reader", "keyboard navigation", "contrast ratio", "inclusive design", "accessible UI".
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Accessibility (a11y) Design
WCAG 2.2 AA–oriented design fundamentals. Depth in references/. Official spec: WCAG 2.2.
"The power of the Web is in its universality. Access by everyone regardless of disability is an essential aspect." — Tim Berners-Lee
POUR (one line each)
| Perceivable | Contrast, alternatives, not color-only, zoom/reflow |
| Operable | Keyboard, focus, targets, no traps |
| Understandable | Labels, clear errors, consistent nav |
| Robust | Semantic HTML; ARIA only when needed |
Pre-ship (short)
Automated (~30%): axe / Lighthouse / WAVE clean enough to proceed.
Manual (~70%): keyboard-only path; one screen reader pass; contrast; 200% zoom; prefers-reduced-motion; real-device targets.
Content: alt text, input labels, actionable errors, lang, unique titles.
Reference Map
references/pour-principles.md— POUR with design asksreferences/contrast-keyboard-checklist.md— contrast + keyboard + focus CSSreferences/wcag-22-aa-quick-map.md— designer-facing criterion IDs
Related Skills
- For visual contrast/type → use
ui-visual-design - For touch targets → use
mobile-touch-design - For form labels/validation a11y → use
form-ux - For error messaging patterns → use
error-empty-states - For interaction patterns → use
interaction-design-patterns
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