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Accessibility Color Checker

Check color contrast ratios for accessibility compliance.

This tool processes all data locally on your device.

Input

Text color

Color

Background color

Color

Preview

Normal text (16px)

Large text (18px bold)

Output

Accessibility Results

Readme

Tool description

The Accessibility Color Checker is a comprehensive tool designed to evaluate color contrast ratios between text and background colors to ensure compliance with Web Content Accessibility Guidelines (WCAG). This tool helps designers, developers, and accessibility professionals create more inclusive digital experiences by providing real-time contrast analysis and WCAG compliance ratings.

The tool calculates precise contrast ratios using the WCAG-specified formula for relative luminance and provides clear feedback on whether your color combinations meet AA or AAA accessibility standards. It features an intuitive interface with color pickers, live preview functionality, and detailed compliance reporting for both normal and large text scenarios.

Features

Real-time Contrast Calculation: Instantly calculates contrast ratios as you adjust colors using the WCAG 2.1 formula
WCAG Compliance Assessment: Evaluates color combinations against both AA and AAA accessibility standards
Dual Text Size Analysis: Separate compliance checks for normal text (16px) and large text (18px+ or 14px+ bold)

Tool info

Created

Aug 17, 2025

Last updated

Oct 1, 2025

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Embed

Embed this tool anywhere for free. Need help? Check out our guide.

<iframe src="https://rapidtoolset.com/en/embed/accessibility-color-checker" title="Accessibility Color Checker - rapidtoolset.com" style="border:0;width:100%;min-height:600px;" loading="lazy"></iframe>
<p>Powered by RapidToolSet: <a href="https://rapidtoolset.com/en/tool/accessibility-color-checker" target="_blank">https://rapidtoolset.com/en/tool/accessibility-color-checker</a></p>

HTML

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Disclaimer

The tools provided on this website are designed to assist users in solving various problems. While we strive to ensure that the tools are accurate and effective, we do not guarantee or warrant that the output of any tool will be 100% accurate or error-free. The results generated by these tools are provided as-is and should be used with caution. We recommend that users verify any important information or results with additional resources or professional advice, as we cannot be held responsible for any consequences arising from the use of these tools. By using this website, you agree to assume all risks associated with the accuracy and use of the results provided.