Color Contrast Ratio :
| WCAG 2 AA Compliant | |
| WCAG 2 AA Compliant (18pt+) | |
| WCAG 2 AAA Compliant | |
| WCAG 2 AAA Compliant (18pt+) |
The WCAG 2.0 formula differentiates between text smaller than 18pt and text larger than 18pt (or text that is bold and larger than 14pt).
For AA compliance, text should have a ratio of at least 4.5:1 (larger text, at least 3:1).
For AAA compliance, text should have a ratio of at least 7:1 (larger text, at least 4.5:1).