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Free Accessibility Contrast Checker (WCAG-Compliant)

Check text and background color contrast online and see if your design meets WCAG accessibility requirements. Our free contrast checker helps identify readability issues and improve visual accessibility. No signup or technical knowledge required — test your colors and get clear pass or fail results.

Frequently Asked Questions

Answers to the most common questions about accessibility contrast, WCAG standards, and how to use this tool effectively.

The contrast ratio is the difference in luminance between two colors, typically text and background. It determines how readable your content is.

Poor contrast can make text unreadable for users with visual impairments or color blindness, limiting access to your content.

This tool checks for WCAG 2.1 AA compliance, which is the recommended baseline for most websites.
The checker uses official WCAG formulas and ensures fully reliable, standards-based results.

Yes! It works for any text-based element, including buttons, labels, menus, and more.

Not always. Even if it looks bright, the contrast ratio must be tested. Some colors may not pass the 4.5:1 requirement

 

No tool alone can guarantee full compliance. This checker helps meet contrast requirements but accessibility involves many factors.

No installation needed. Just enter your colors and check the results instantly.

If you have any further questions or just want to reach our team, click the button below.

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