Color Contrast Checker
Test your color choices for WCAG 2.1 level AA and AAA compliance to build inclusive, accessible experiences.
Why Color Contrast Matters ?
For millions of people with visual impairments, including those who are blind, have low vision, or experience color blindness, the way colors are used on a website can make the difference between a smooth experience and a frustrating one. Text that blends into its background or buttons that lack sufficient contrast often becomeinvisible or unusable for these users.
That is why color contrast is an essential part of digital accessibility. Following the Web Content Accessibility Guidelines (WCAG) ensures that your content is not only compliant but also truly usable for everyone.
WCAG Contrast Requirements
Specifically for color usage, WCAG defines minimum contrast ratio requirements to make text readable against its background.
These are grouped into two main levels:
Level AA (standard accessibility)
At least 4.5:1 contrast for normal text, and 3:1 for large text (18pt+ or 14pt bold). This is the minimum recommended standard for most websites.
Level AAA (enhanced accessibility)
At least 7:1 contrast for normal text, and 4.5:1 for large or bold text. This level is typically reserved for content that must meet the highest standards of accessibility.
How This Tool Helps
Our Color Contrast Checker makes it easy to test whether your color combinations meet these standards. With a quick check, you can:
- Ensure text remains readable for users with low vision or color blindness.
- Support an inclusive design that welcomes all visitors.
- Move your site closer to WCAG compliance without guesswork.
Designing with contrast in mind not only helps those with visual challenges but also improves readability and user experience for everyone, from users on low-quality screens to those browsing in bright sunlight.