A MORE COLORFUL WORLD
Color Vision
Understand, test, and preserve your color perception
Color vision lets you distinguish the different shades around you. It plays an essential role in everyday life: work, driving, leisureā¦ Discover how it works, the most common disorders, and test your color vision online.
Take a color vision test- Reliable and accessible online test
- Immediate and confidential results
- On computer, tablet, and mobile
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How does color vision work?
Our color perception relies on specialized cells in the retina called cones. There are three types, sensitive respectively to red, green, and blue wavelengths. The brain combines this information to create the entire palette of colors we see.
Cones and Colors
- Red-sensitive cones
- Green-sensitive cones
- Blue-sensitive cones
The combination of signals from these three types of cones allows us to perceive millions of colors.
The Main Color Vision Disorders
Deuteranopia
Difficulty perceiving green. Red may seem easier to distinguish.
Protanopia
Difficulty perceiving red. Green may seem easier to distinguish.
Tritanopia
Difficulty perceiving blue. Rarer, it can affect the ability to distinguish between blue and yellow.
Achromatopsia
Absence of color perception. Vision is in black and white.
Our tips for better color vision
A few simple habits can make a difference:
- Make sure you have good lighting in your daily activities
- Use appropriate contrasts to better distinguish colors
- Take regular breaks when working on a screen
- Protect your eyes from the sun with suitable glasses
- Consult a healthcare professional if in doubt
- Test your color vision regularly
Want to test your color vision?
Take our quick, reliable online test, accessible on all your devices.
Frequently asked questions about color vision
This test does not replace an examination by a healthcare professional. If in doubt, consult an ophthalmologist.