Contrast Check

Check color pairs against WCAG 2.1 contrast requirements. Pass in hex colors and get contrast ratios with AA/AAA pass/fail results for both normal and large text.

When to Use

• Checking if a text color is readable against a background color
• Auditing an entire color palette for accessibility compliance
• Verifying colors extracted from a design meet WCAG standards

How It Works

1. Takes a list of hex colors as arguments
2. Computes the contrast ratio for every foreground/background pair
3. Tests each pair against WCAG 2.1 AA and AAA thresholds for normal and large text