# A11Y-1 — Text meets WCAG AA contrast — 4.5:1 body, 3:1 large text and UI components

L0 · deterministic · Accessibility

**Fails when:** body copy under 4.5:1 against its background · gray text on coloured backgrounds that fails AA

No extended detail — this standard is defined by its catalogue entry above. Full rationale and examples are added when a standard needs them.