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Contrast Checker
Check color contrast ratios. This tool runs 100% locally in your browser.
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Example Text
This is how your text looks with these colors.
Contrast Ratio
21.00:1
WCAG AA Normal
Required: 4.5:1✓ Pass
WCAG AA Large
Required: 3:1✓ Pass
WCAG AAA Normal
Required: 7:1✓ Pass
WCAG AAA Large
Required: 4.5:1✓ Pass
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What is Contrast Checker?
Ensure your text is readable for everyone. Check if the foreground and background color combination meets WCAG accessibility standards (AA or AAA).
Crucial for accessible web design.
When to Use This Tool
- 1Verifying readability
- 2Meeting legal accessibility requirements
- 3Improving user experience
Examples
Input
Text: White, Bg: Black
Result
Ratio: 21:1 (Pass AAA)
Frequently Asked Questions
What is a good ratio?
For normal text, 4.5:1 is required for Level AA. For large text, 3:1 is sufficient.
Privacy & Security
Privacy is our priority. Unlike many other online tools, ToolsHub doesn't upload your data to any server. Whether you're processing sensitive text, calculating financial data, or generating passwords, everything stays in your browser.