Color contrast
WCAG 1.4.6 · Level AAA- What
- Text needs a 7:1 contrast ratio against its background to meet AAA — 4.5:1 for AA.
- Why it matters
- Low contrast is the single most common barrier on the web. It shuts out people with low vision, and everyone else in bright sun or on a bad screen.
- How Aulys catches it
- Reads the exact fill and text colors of your frame, computes the ratio, and shows the nearest passing color — before the issue ever reaches code.