Color Blindness Simulator
Simulate how your images appear to people with different types of color blindness
Upload an image to test
Supports JPG, PNG, WebP
Note: This simulation uses SVG filters to approximate how colors are perceived. It is not a medical diagnosis tool.
About Color Blindness
Color blindness (color vision deficiency) affects approximately 1 in 12 men and 1 in 200 women worldwide. Designing accessible content means ensuring your visuals are understandable by everyone, regardless of their color vision.
Types of Color Blindness
- Protanopia: Reduced sensitivity to red light. Red looks darker or like green.
- Deuteranopia: Reduced sensitivity to green light. The most common form. Red and green look similar.
- Tritanopia: Reduced sensitivity to blue light. Rare. Blue and green look similar, as do yellow and red.
- Achromatopsia: Total color blindness. Seeing only in shades of gray. Very rare.
Use this tool to check if your charts, buttons, and UI elements maintain sufficient contrast and clarity for all users.
Frequently Asked Questions
Accessibility ensures your content can be used by everyone, including people with disabilities. It's often a legal requirement and expands your potential audience significantly.
Don't rely on color alone to convey meaning. Use icons, patterns, labels, or text alongside color. Ensure high contrast between text and background colors.
It provides a close approximation based on standard color blindness models (LMS daltonization). However, individual experiences of color blindness vary.
No, all processing happens in your browser. Your images are never uploaded to any server.
Deuteranopia (green-blindness) and Deuteranomaly (green-weakness) are the most common forms, affecting about 6% of the male population.