What does it do?
Calculate WCAG contrast ratio for two colors.
Color Contrast Checker is a free developer tool that runs directly in your browser. Your data is processed locally and is never sent to the DevMiniTools server.
Practical use cases
Use it whenever you need to format, convert, inspect, or generate developer data quickly.
How to use it
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1
Enter the value you want to process in Color Contrast Checker.
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2
Choose any required options and click Run or Generate.
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3
Review the output, then copy it or clear the fields when needed.
Frequently asked questions
Yes. The tool is free to use and does not require registration.
No. Processing happens locally in your browser and your input is not uploaded.
Use the Copy result button after the tool finishes processing.
Color Contrast Checker
Use the tool now
Use the tool now
Calculate WCAG contrast ratio for two colors.