Colors & AccessibilityLesson 92Free preview
Color Blindness Simulator
This lesson is part of Web Developer Tools · All levels
Summary
The simulator of color blindness estimates how colors look to users with certain types of color vision. Common simulations include deuteranopia, protanopia, tritanopia, and achromatopsia. This tool helps designers find color combinations that are too similar and add non-color markers.
Key points
- Deuteranopia and protanopia affect the perception of red and green
- Tritanopia affects the perception of blue and yellow
- Achromatopsia is the inability to distinguish colors at all
- Don't rely on color for status or graphics
- Simulation helps, but testing with real users remains important
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