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accessibility-checker.org
Screenshot of Colour Contrast Checker
Hidden Gem

Edited by Alex Surfaced·Design·2 min read
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This straightforward web tool helps designers and developers ensure that their color combinations meet accessibility standards. It allows you to input foreground and background colors, then instantly calculates the contrast ratio and provides a WCAG 2.1 compliance rating. Built by a small team passionate about web accessibility, it's an essential utility for anyone building inclusive digital experiences. For example, you could use it to check if your button text is sufficiently visible against its background for users with visual impairments.

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Why It’s Useful

While many design tools have built-in contrast checkers, this standalone tool is exceptionally fast and accurate, providing clear pass/fail indicators for various WCAG levels. Its simplicity is its strength; there's no bloat, just a quick way to verify critical color choices. Power users appreciate its directness for rapid iterations. It’s particularly valuable for small teams or individual creators who might not have access to comprehensive design suites but still need to adhere to accessibility guidelines. It saves time and prevents costly reworks by catching issues early.

In everyday life

When you’d actually reach for this

When picking a new font color for your blog's header or checking if the text on a promotional banner is readable, you can quickly paste the hex codes into this tool. It confirms your choices are clear and compliant for everyone.

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