Design Tools
Color Contrast Checker
Calculate WCAG contrast ratio between foreground and background colors.
Runs in your browser
Quick answer
What does Color Contrast Checker do?
Calculate WCAG contrast ratio between foreground and background colors. It is designed for a direct input → result workflow with no account requirement. File-based browser-local tools process the selected data locally in your browser.
How to use Color Contrast Checker
- Enter, paste or choose the input requested by the tool.
- Adjust any options shown for your task.
- Run the tool, review the result and copy or download it when available.
For important financial, technical or publishing decisions, verify the result against the source system or rule that applies to your situation.
Color Contrast Checker FAQ
What does Color Contrast Checker do?
Calculate WCAG contrast ratio between foreground and background colors.
Is Color Contrast Checker free to use?
Yes. MediaZuno provides Color Contrast Checker free to use without requiring an account.
Does Color Contrast Checker upload my input?
This version runs in your browser. Your input is processed on your device rather than being uploaded to MediaZuno.