Color contrast checker
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Search and use guide
Color contrast checker
Compare foreground and background colors to check contrast ratio and WCAG level. privacy-first-browser-tooling
Who it helps
- Enter two color codes to see the contrast ratio and AA or AAA status.
- The checker converts colors to relative luminance and applies the WCAG contrast formula.
- #111111 against #ffffff has enough contrast to pass AA.
What you can enter
- #111111 against #ffffff has enough contrast to pass AA.
- The checker converts colors to relative luminance and applies the WCAG contrast formula.
How to read results
The checker converts colors to relative luminance and applies the WCAG contrast formula. privacy-first-browser-tooling
Data and privacy
GoGo Tools records analytics by tool slug only and does not include your input values. privacy-safe-analytics-only
Feedback
How can we improve this tool?
Send a suggestion or bug report for this tool.
FAQ
Is my data uploaded?
No. This tool processes your input in the browser. Analytics events record only the tool slug.
Can I use it in different countries?
Yes. Adjust the inputs for your location, units, prices, rules, or workflow.
Can I download or copy the result?
Most tools provide copyable text. Checklist or table tools provide plain text or CSV downloads.
Does it work on mobile?
Yes. Tool pages are responsive for phones and desktop browsers.