Free Color Contrast Checker – WCAG AA & AAA Compliance

WCAG AA requires a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text (around 18pt or 14pt bold). The checker shows whether your color pair meets these thresholds instantly.

AAA is the stricter level, requiring 7:1 for normal text and 4.5:1 for large text, while AA requires 4.5:1 and 3:1. The checker reports both so you can target the level your project needs.

Helperzy checker mein text color aur background color choose karo, aur contrast ratio turant dikh jayega, saath hi WCAG AA aur AAA ke pass/fail badges. Sab kuch browser mein hota hai.

Sufficient contrast makes text readable for people with low vision or color deficiencies and in difficult lighting. Meeting WCAG contrast ratios is a core part of web accessibility and is often a legal requirement.

Yes. Because WCAG allows lower contrast for large text, the checker reports results for both normal and large text sizes, so you know exactly which contexts your color pair passes.

Yes. Adjust the text or background color and watch the ratio and pass/fail badges update live, so you can tweak a shade until it meets the level you need without guessing.

Yes. The checker uses the official WCAG 2.x relative-luminance and contrast-ratio formulas, so the result matches professional accessibility auditing tools.

Yes. Everything is processed in your browser. No color you test is uploaded, logged, or shared, so your work stays entirely on your own device.