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Color Blindness Simulator — Free Online Color Vision Testing

See how your colors look to people with different types of color blindness. Optimize your design for accessibility, usability and inclusivity.

Color Picker

Select or enter a color code

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

Core Features

  • Multiple Color Blindness Modes
  • Simulate real conditions including:
  • Protanopia (red-blind)
  • Deuteranopia (green-blind)
  • Tritanopia (blue-blind)
  • Protanomaly
  • Deuteranomaly
  • Tritanomaly
  • Achromatopsia (complete color blindness)
  • Side-by-Side Comparison
  • View normal vision vs color-blind vision simultaneously for fast evaluation.
  • Real UI Preview
  • Test how colors appear on:
  • Buttons
  • Text
  • Cards
  • Icons
  • Backgrounds
  • Upload Your Own Image
  • Test color-blind visibility directly using your own images, graphics or brand visuals.
  • Instant & Accurate Simulation
  • Simulations are powered by accurate, research-based color mapping algorithms.

How To Use

1
Enter a Color Value — type a HEX color code or pick from color wheel.
2
Select Color Blindness Type — switch between different simulation modes with one click.
3
Compare Real-Time Results — see normal vs simulated views side-by-side.
4
Adjust Your Colors — use the insights to improve contrast, saturation or palette choices.

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.