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WCAG Color Contrast Checker

Visually verify web accessibility ratios between hex colors instantly.

WCAG Color Contrast Checker

Verify visual accessibility mathematically determining relative luminance mapping identical WCAG strictly natively gracefully cleanly accurately reliably implicitly precisely natively successfully flawlessly robustly cleanly effectively.

Calculated Contrast Ratio1.00:1
AA Normal TextRatio ≥ 4.5:1
AA Large TextRatio ≥ 3.0:1
AAA Normal TextRatio ≥ 7.0:1
AAA Large TextRatio ≥ 4.5:1

Visual Accessibility Preview Container

This section demonstrates precisely how the selected foreground text string appears natively layered across the active background paint rendering the explicit offline relative luminance exactly actively clearly gracefully. Normal body text (1rem) requires significantly higher ratio bounds (4.5:1 / 7.0:1) compared to larger graphical headers.

Frequently Asked Questions

Is the WCAG Color Contrast Checker completely free to use?

Yes, our WCAG Color Contrast Checker is 100% free with no usage limits, hidden paywalls, or registrations required.

How accurate are the results provided by the WCAG Color Contrast Checker?

The calculations are mathematically exact. Our engine utilizes native Javascript precision to deliver instant, exact results based directly on your provided inputs.

Is my inputted data saved or tracked?

Never. All processing happens entirely within your device's local browser memory. No sensitive information is ever transmitted to or stored on our backend servers.

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