What is the Color Converter?
The Color Converter is a free online developer tool that allows you to translate color values across different color spaces seamlessly. Whether you have a HEX code from a design mockup, an RGB value from a CSS file, or an HSL definition, this tool instantly translates it into all other standard formats (HEX, RGB, HSL, and HSV).
Additionally, it features a built-in accessibility contrast checker to help designers and developers verify that their color choices meet the Web Content Accessibility Guidelines (WCAG).
Understanding Color Models
Both represent colors by combining Red, Green, and Blue light. RGB uses integers from 0 to 255, while HEX expresses the exact same values in base-16 hexadecimal format.
Hue, Saturation, and Lightness (or Value). These models represent colors in a cylindrical coordinate system, making it far easier for humans to create variations like shades and tints.
How to Use the Tool
- Type or Paste: Enter your color string directly into the text box. The tool understands standard CSS formats like
#ff0000,rgb(255, 0, 0), orhsl(0, 100%, 50%). - Visual Picker: Click the color swatch next to the input to open your system's native color picker and select a color visually.
- Copy Results: The tool instantly outputs the converted formats. Click the copy icon next to any format to copy it to your clipboard.
- Check Accessibility: The WCAG contrast section immediately shows you the contrast ratio of your selected color against both black and white backgrounds, including AA and AAA pass/fail badges.
Why Use This Tool?
- Client-Side Only: All processing is done locally in your browser for maximum speed and privacy.
- All-in-One: Combines format conversion and accessibility checking in a single workflow.
- Developer-Friendly: Formats are output precisely as they appear in CSS.
Frequently Asked Questions
Is this Color Converter tool secure?
Yes. All color conversions and WCAG contrast calculations are performed entirely in your browser using JavaScript. No data is sent to our servers.
What color formats does this tool support?
This tool supports input in HEX (e.g., #3b82f6), RGB/RGBA (e.g., rgb(59, 130, 246)), and HSL/HSLA (e.g., hsl(217, 90%, 60%)). It outputs the converted values in HEX, RGB, HSL, and HSV formats simultaneously.
What is the WCAG Contrast Checker?
The Web Content Accessibility Guidelines (WCAG) dictate how much contrast should exist between text and its background to be readable. This tool calculates the exact contrast ratio of your chosen color against both solid black and solid white.
What do AA and AAA contrast ratings mean?
AA and AAA are conformance levels in WCAG. For normal text, AA requires a contrast ratio of at least 4.5:1, and AAA requires 7.0:1. Large text has slightly lower requirements (3.0:1 for AA, 4.5:1 for AAA).
Why should I convert colors to HSL instead of using RGB?
HSL (Hue, Saturation, Lightness) is often more intuitive for human design than RGB. If you need to make a color darker or more vibrant, simply adjusting the Lightness or Saturation values in HSL is much easier than figuring out the correct mix of Red, Green, and Blue.