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Free Contrast Checker — WCAG AA & AAA Accessibility Testing

Test text and background color contrast instantly. Ensure your design meets WCAG 2.1 standards for accessibility and readability.

Color Picker

Select or enter a color code

#2596BE
#
HSL/HSV Square Picker
Contrast Checker
Conversion
Variations
Color Combinations
Blindness Simulator

Core Features

  • Instant Multi-Format Conversion
  • Enter a color in HEX, RGB or HSL — all formats update in real time.
  • Auto-Correction & Smart Parsing
  • The tool automatically fixes incomplete or invalid color formats.
  • Alpha Channel Support
  • Full support for HEXA, RGBA and HSLA values.
  • Large Preview Panel
  • Visualize how the converted color looks on realistic UI surfaces.
  • One-Click Copy for Developers
  • Copy HEX, RGB or HSL instantly for CSS, mobile apps or design tools.

How To Use

1
Enter a Color Value — type a HEX / RGB / HSL color in the input field.
2
View Instant Output — all corresponding color codes update automatically.
3
Adjust the Color (Optional) — use sliders (if available) to fine-tune lightness or tone.
4
Copy the Result — click to copy HEX / RGB / HSL to your clipboard.

Find answers to commonly asked questions

What is a color converter?

A color converter transforms a color value between formats such as HEX, RGB and HSL.

Is this tool free?

Yes — the converter is 100% free with no sign-up required.

Which formats are supported?

HEX, RGB, HSL, CMYK, XYZ, LAB, LUV and HWB.

Does the converter work in real time?

Yes, all formats update instantly as you type.

Can I use the converted color in commercial work?

Absolutely — you can use any generated color values in personal or commercial projects.