Accessibility & Contrast Audit

Quantitative accessibility checks for contrast, font size, hit areas, and semantic structure.

Quick Start

python3 scripts/audit_accessibility.py --source src/ --tokens tokens.json

Criterion	Level AA	Level AAA
Normal text contrast	4.5:1	7:1
Large text contrast (18px+ or 14px bold)	3:1	4.5:1
UI components/graphics	3:1	3:1
Minimum touch target	44×44px	44×44px
Minimum font size (body)	16px	16px

Type	Severity	Description
`low-contrast`	error	Text/background contrast below WCAG threshold
`text-too-small`	warning	Font size below recommended minimum
`hit-area-too-small`	warning	Touch/click target below 44×44px
`heading-skip`	warning	Heading levels skipped (h1→h3)
`missing-alt`	error	Image missing alt text