👁️ Color Contrast Checker
Check if your text meets WCAG AA and AAA accessibility standards. Instant pass/fail with ratio scores.
WCAG Contrast Requirements
| Level | Normal Text | Large Text (≥18pt bold or ≥24pt) |
|---|---|---|
| AA | 4.5:1 | 3:1 |
| AAA | 7:1 | 4.5:1 |
AA is the minimum for accessibility compliance. AAA provides enhanced contrast for users with low vision. Most websites target AA compliance.
Frequently Asked Questions
Contrast ratio measures the difference in luminance between two colors. Higher ratios mean more contrast and better readability. The ratio ranges from 1:1 (identical colors) to 21:1 (black on white).
WCAG (Web Content Accessibility Guidelines) is the international standard for web accessibility. AA compliance is legally required in many jurisdictions. Meeting AA standards ensures your content is readable by users with visual impairments.
No. All calculations happen in your browser. Your colors never leave your device.