This color contrast checker is based on the Web Content Accessibility Guidelines (WCAG) a global standard for improving digital accessibility, especially for users with visual impairments.
WCAG defines two levels of color contrast compliance: AA and AAA. These help ensure that text remains readable, particularly for users with low vision or color blindness.
Level AA requires:
- 4.5:1 contrast ratio for normal text
- 3:1 for large or bold text (18pt or 14pt bold)
Level AAA requires:
- 7:1 contrast ratio for normal text
- 4.5:1 for large or bold text
These guidelines help designers and developers build content that’s not only visually appealing, but also accessible to everyone.
Use this tool to test your color combinations and ensure they meet accessibility contrast requirements to foster a more inclusive web.
Color Contrast Checker FAQs
What is a contrast checker tool?
A contrast checker tool analyzes the color contrast ratio between text and background colors to ensure readability and compliance with accessibility standards like WCAG 2.1.
Why is color contrast important for accessibility?
Proper color contrast ensures that text is readable by people with visual impairments, including color blindness. It also helps your website meet accessibility guidelines required for SEO and legal compliance.
How does the CodeAIKit contrast checker work?
Simply input your foreground (text) and background color values in HEX, RGB, or HSL format, and the tool will instantly calculate the contrast ratio and determine if it passes AA or AAA standards.
Can I use this tool for web design and mobile apps?
Yes, the contrast checker supports web and mobile UI colors, helping designers, developers, and accessibility testers ensure consistent readability across platforms.
Does this tool help with WCAG and ADA compliance?
Absolutely. Our contrast checker measures contrast according to WCAG 2.1 guidelines, which are widely used to meet ADA and other accessibility standards worldwide.
Is the contrast checker free to use?
Yes, the CodeAIKit contrast checker is completely free and can be used without any account registration. Perfect for developers, designers, and agencies working on multiple projects.
