Color Contrast Checker
Check WCAG 2.1 Contrast Ratio - AA/AAA for normal and large text
Normal Text Example
Smaller Text - as it appears in running text
Schnellauswahl
Check WCAG Accessibility Standards
Our Color Contrast Checker helps you ensure your website meets WCAG 2.1 accessibility guidelines. The tool calculates the exact contrast ratio between foreground and background colors, providing immediate feedback for both normal and large text styles. It specifically checks if your design passes AA (4.5:1 for normal, 3:1 for large) or AAA (7:1 for normal, 4.5:1 for large) requirements. This ensures that your content remains legible for all users, including those with visual impairments.
Secure and Local Processing
Your privacy is a priority when using our online tools. The Color Contrast Checker processes all calculations directly in your web browser. No color data or design information is sent to an external server, ensuring that your project details remain private and secure. This local processing makes the tool fast and reliable for designers and developers who need instant feedback on their UI elements without compromising any sensitive information during the design process.
Frequently asked questions
What is a good contrast ratio for web accessibility?
For standard text, a minimum ratio of 4.5:1 is required to meet WCAG 2.1 AA standards. Large text requires at least 3:1. For the stricter AAA level, large text needs 4.5:1 and normal text requires 7:1. Our tool helps you verify these specific thresholds instantly for your design.
What is the difference between WCAG AA and AAA?
Both are levels of success for web accessibility. AA is the standard requirement for most websites, ensuring good readability for most users. AAA represents a higher level of accessibility, providing even better contrast for users with significant visual impairments. Our tool checks both levels to help you choose the right target.
How can I make my text more readable?
To improve readability, ensure there is a high enough contrast ratio between your text color and the background. Avoid using light gray on white or yellow on white. Use our tool to test different combinations until you reach at least a 4.5:1 ratio for normal text to meet basic accessibility standards.