Color Contrast Checker: WCAG Accessibility Tool
Check your design's color contrast ratio instantly. Ensure your text is readable and meets WCAG AA and AAA accessibility standards for a better user experience.
Contrast Ratio: NaN:1
- ✔️ Normal Text (AA): Pass
- ✔️ Large Text (AA): Pass
- ✅ Normal Text (AAA): Pass
- ✅ Large Text (AAA): Pass
Color Contrast Checker Ensure Accessibility & WCAG Compliance
Designing a website or user interface? Our Color Contrast Checker helps you instantly test color combinations for accessibility, readability, and compliance with WCAG (Web Content Accessibility Guidelines). Simply input your foreground and background colors, and this tool will tell you if they pass the required contrast ratio for accessible web design.
Whether you're a UI/UX designer, developer, or accessibility advocate, ensuring your text is readable to all users—including those with visual impairments—is critical. Poor contrast can make content difficult or impossible to read, hurting both user experience and SEO.
Why Color Contrast Matters
Color contrast isn't just about style it's about accessibility and inclusivity. Websites must be readable for users with low vision, color blindness, or other visual disabilities. WCAG defines the minimum contrast ratios for text and user interface elements to ensure content is accessible to as many people as possible. To build a visually balanced and accessible scheme from scratch, you can also use our Color Palette Generator.
Our tool evaluates contrast ratios based on WCAG 2.1 AA and AAA standards, so you can meet legal requirements and build more inclusive digital experiences.
How It Works
- Enter or select foreground and background colors (supports HEX, RGB, HSL formats)
- Get real-time contrast ratio results
- Instant pass/fail status for WCAG AA & AAA levels
- Supports large and normal-sized text evaluation
- No installation or login required
Need help picking the right color combinations? Use our Color Picker & Converter to experiment with different color formats and preview your results live.
Benefits of Using a Color Contrast Checker
Improve your site's usability for all users
Meet WCAG requirements for digital accessibility
Boost your site's SEO and UX scores
Prevent legal issues related to accessibility compliance
Create visually clean and professional designs
FAQs
What contrast ratio is required for accessibility?
WCAG requires a minimum contrast ratio of 4.5:1 for normal text and 3:1 for large text under Level AA. For Level AAA, the requirements are stricter (7:1 for normal text).
Does this tool support HEX and RGB formats?
Yes! Our tool supports HEX, RGB, and HSL color formats. You can easily convert between them using our integrated color converter.
Is it free to use?
Absolutely. Our Color Contrast Checker is 100% free, browser-based, and doesn't collect or store any user data.
Start Building Inclusive Web Experiences
Make your design choices count—both aesthetically and functionally. Use our Color Contrast Checker to verify your color palettes meet accessibility standards and deliver exceptional user experiences to everyone. Better design, better accessibility, better web.