Free WCAG Color Contrast Checker – Test color pairs for WCAG AA/AAA accessibility in seconds

Summary: This tool checks color contrast ratios between text and background colors, providing pass/fail results for WCAG 2.1 AA and AAA standards for normal and large text. It runs entirely in the browser with instant feedback.

What it does

Users enter two colors to receive the contrast ratio and compliance status for WCAG 2.1 AA and AAA levels on normal and large text and UI elements.

Who it's for

Designers and developers focused on accessibility and inclusive interface design.

Why it matters

It ensures color combinations meet accessibility standards, improving readability and inclusivity.