WCAG 2.1 AA & AAA accessibility compliance for any color combination
| Level | Normal Text | Large Text |
|---|---|---|
| AA | 4.5:1 | 3:1 |
| AAA | 7:1 | 4.5:1 |
Large text = 18pt+ (24px) or 14pt+ (18.5px) bold
The Web Content Accessibility Guidelines (WCAG) require minimum contrast ratios between text and its background. Poor contrast makes content unreadable for users with visual impairments, color blindness, or low vision. Compliance isn't just ethical — it's required by law in many jurisdictions (Section 508, ADA, EN 301 549).