accessibility
Installation
SKILL.md
Accessibility skill
Use this skill when building or reviewing slides to ensure they are accessible to all audiences, including people with visual, motor, or cognitive disabilities, and audiences viewing on projectors in bright rooms.
Color contrast
WCAG 2.2 AA requirements
| Element | Minimum contrast ratio | Notes |
|---|---|---|
| Normal text (<24px) | 4.5:1 against background | All body text, labels, captions |
| Large text (>=24px or >=18.66px bold) | 3:1 against background | Titles, headings, hero stats |
| UI components and graphics | 3:1 against adjacent colors | Chart bars, shape borders, icons, buttons |
| Focus indicators | 3:1 against adjacent colors | Keyboard navigation outlines |
Projection adjustment
Projectors reduce contrast. Aim higher than WCAG minimums: