Color Toolkit
The complete Color Toolkit for designers and developers. Pick colors from an interactive color wheel, generate harmonious palettes with 10 harmony types, extract colors from images, and check WCAG 2.1 contrast ratios for AA and AAA compliance. 100% free, browser-based, private, no registration required.
Color Toolkit Workspace
Color Contrast Checker
Example Headline
Preview how your selected foreground and background colors appear across common interface text.
Important information should remain clear and easy to read.
Smaller captions and secondary text should also maintain sufficient contrast.
Review readability across different text sizes and weights before applying your color combination.
Discover More
Tips, guides & FAQs
What Is a Color Contrast Checker?
Ensure your designs meet WCAG 2.1 accessibility standards. Enter foreground and background colors (or pick them from an image) and instantly see contrast ratios. Check AA and AAA compliance for normal text, large text, and UI components. Live preview shows how your colors look together.
For more advanced tasks, you can also try our Color Picker, Image Color Extractor.
WCAG 2.1 Ratings
AA and AAA for normal text, large text, and UI
Pick from Image
Upload an image to pick both foreground and background colors
Live Preview
See your text and UI elements in real time
Accessibility First
Make your content inclusive for everyone
How to Use
Follow these simple steps to get the most out of this tool.
Pick Colors
Enter HEX values or pick from an image
Check Contrast
We calculate the ratio and WCAG ratings instantly
Adjust & Preview
Tweak colors until you pass all required levels
Why Use This Tool?
Our tool is free, private, and runs entirely in your browser – no sign‑ups.
WCAG 2.1 Compliant
Accurate ratings for AA and AAA levels
Image Support
Pick colors directly from an image
Live Preview
See real‑world examples of your color combination
Swap Colors
Quickly swap foreground and background
Is This Tool Safe?
100% SECUREAll processing is done locally in your browser. Your data never leaves your device.
Common Use Cases
From web accessibility audits to inclusive design – the contrast checker ensures your content is readable for everyone.
💡Tips & Best Practices
- ✓Use the "Pick from Image" button to sample colors directly from your designs for real‑world testing.
- ✓Aim for 4.5:1 for normal text (AA) and 7:1 for AAA. Large text (≥18pt) only needs 3:1 for AA and 4.5:1 for AAA.
- ✓UI components like buttons and icons should meet at least 3:1 contrast ratio.
- ✓Use the Swap button to quickly flip foreground and background to see which combination works best.