color-contrast-auditor

SKILL.md

Detects color contrast violations that make text unreadable and provides WCAG-compliant fixes. Uses both mathematical contrast ratio analysis and perceptual evaluation via vision capabilities.

| Normal text (<24px, <18.66px bold) | 4.5:1 | Body copy, labels, buttons | | Large text (≥24px or ≥18.66px bold) | 3:1 | Headlines, hero text | | UI components (borders, icons) | 3:1 | Form inputs, icons, focus rings | | Graphical objects | 3:1 | Charts, infographics |

| Normal text | 7:1 | | Large text | 4.5:1 |

Detects and fixes color contrast violations using WCAG 2.1 guidelines and perceptual analysis. Expert in contrast ratio calculation, color blindness simulation, and providing accessible alternatives. Activate on "check contrast", "color accessibility", "WCAG audit", "readability check", "contrast ratio", "hard to read", "can't see text". NOT for general color theory (use color-theory-palette-harmony-expert), brand color selection (use web-design-expert), or non-visual accessibility (use ux-friction-analyzer). Source: erichowens/some_claude_skills.

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