Ctrl + K
HomeColors ToolsColor Blindness Simulator
Free Developer Tool

Color Blindness Simulator

Preview how colors and images appear under common types of color vision deficiency.

Color
Vision Type
Complete green-cone deficiency.
Original
Aa
#FF0000
Simulation
Aa
#CFDA00
Color Palette Simulation
#CFDA00
#A59595
#0000DA
#FFFF95
#A595FF
#CFDADA
#DCE44D
#7479DC
#6C617F
#FFFFFF
#808080
#000000
Top swatch: original color. Bottom swatch: simulated vision.
Analysis
Original HEX#FF0000
Simulated HEX#CFDA00
RGB Difference223.0

What is Color Blindness Simulator?

Simulate how colors appear to people with different types of color vision deficiency. Compare normal color perception with common color blindness conditions to identify colors that may become difficult to distinguish.

How to use

  1. Enter or select colors to simulate.
  2. Choose a color vision deficiency type.
  3. Compare the original and simulated colors.
  4. Review the differences and adjust colors if necessary.

Features

  • Multiple color vision deficiency simulations
  • Original and simulated color comparison
  • Hex color input
  • Instant browser-based processing

Common Use Cases

  • Accessible web design
  • UI and UX testing
  • Color palette evaluation
  • Data visualization
  • Accessibility testing

Example

Input
#FF0000
Output
Original: #FF0000
Protanopia simulation: altered red appearance
Deuteranopia simulation: altered red appearance

FAQ

What types of color blindness can be simulated?

The simulator can model common color vision deficiencies such as protanopia, deuteranopia, and tritanopia.

Can I test individual colors?

Yes. Individual colors can be entered and compared under different simulation modes.

Is this a medical diagnostic tool?

No. A color blindness simulator is intended for design and accessibility testing and should not be used as a medical diagnosis.