Color Converter & Contrast Checker
Convert HEX, RGB, HSL, OKLCH and test WCAG accessibility (AA/AAA) with smart suggestions.
Text Color (Foreground)
Background Color
How to use the Color Converter?
- Use the color pickers or type your HEX, RGB, HSL, or OKLCH values into the text fields.
- The tool instantly converts the color into all other formats.
- Check the "Contrast Ratio" section to see if your text color is accessible on the background.
- Read the WCAG badges (AA, AAA) to ensure your design meets accessibility standards.
Frequently Asked Questions (FAQ)
What is the WCAG contrast ratio?
It is a ratio (e.g., 4.5:1) that measures the difference in luminance between text and background. Higher ratios mean better readability for visually impaired users.
What is OKLCH?
OKLCH is the new CSS color standard. It represents colors in a way that matches human perception, making it easier to create uniform color palettes.
About the Color Converter & Contrast Checker
The Color Converter & WCAG Contrast Checker by Grab-Kit is a free online tool designed for UI/UX designers, frontend developers, and accessibility advocates. In modern web design, colors are expressed in many formats: HEX and RGB are traditional, HSL is great for adjusting hue, and OKLCH is the new CSS standard for perceptually uniform color manipulation. Furthermore, ensuring your text is readable for visually impaired users is not just good practice; it's a legal requirement (WCAG). Our tool combines a bidirectional converter with an accessibility tester.
Using the tool is incredibly intuitive. Use the color pickers or type your HEX, RGB, HSL, or OKLCH values into the text fields for both the foreground (text) and background colors. The tool instantly calculates the contrast ratio between them. It displays WCAG compliance badges for Normal Text (AA requires 4.5:1, AAA requires 7:1) and Large Text (AA requires 3:1, AAA requires 4.5:1). If your colors fail the test, the smart suggestion engine analyzes your colors and provides a tweaked alternative that meets the AA standard, saving you hours of manual guesswork.
Why use Grab-Kit?
All our tools run entirely in your browser. This means your color calculations are performed instantly without any server-side delays. It is completely free, requires no signup, and works flawlessly on both desktop and mobile devices, making it the perfect utility for your design and accessibility workflow.