Color Contrast Checker (WCAG)

Check color contrast ratio for WCAG AA and AAA accessibility compliance.

How It Works

Formula

Contrast Ratio = (L1 + 0.05) / (L2 + 0.05), where L is relative luminance

When to Use Color Contrast Checker (WCAG)

Color Contrast Checker (WCAG) is useful when you need to move the same color between design files, CSS code, accessibility checks, and marketing assets without introducing small formatting mistakes. Keeping one source color synchronized across multiple formats makes handoff work easier for designers, developers, and content teams.

Use the live preview to confirm that the converted value still looks right before you copy it into a stylesheet, design token file, Tailwind config, brand guide, or client deliverable. This extra verification step is especially helpful when you are comparing similar shades or converting colors for both screen and print workflows.

Best Practices

Frequently Asked Questions

How does the color contrast checker (wcag) work?

Enter your values and click Convert. The tool instantly calculates the results using standard color formulas.

Is this color contrast checker (wcag) free?

Yes, this tool is completely free with no registration required.

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