Color blindness test
Look at each circle of dots and tap the number you see. There are 10 plates, generated on the spot, in the style of the Ishihara plates. Take the test with the screen brightness high and no blue-light filter.
How to useWhat number do you see?
Your answers
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Color blindness test: what it is for
The test shows 10 circles of colored dots with a hidden number, in the style of the Ishihara plates used by eye doctors. The plates are generated on the spot, with colors chosen so that people with red-green or blue-yellow color blindness have trouble seeing the number.
At the end you see how many plates you got right in each color group, your answer on each plate and whether there are signs of protanopia, deuteranopia or tritanopia. It is a screening for curiosity and does not replace an exam with an eye doctor.
How to use
- Turn up the screen brightness and switch off the blue-light filter.
- Tap the number you see on each plate, or I see no number.
- See the result by color group and the answer for each plate.
When to use it
- Find out whether it is worth seeing an eye doctor.
- Understand how a color-blind friend or child sees colors.
- Do a quick screening before a job medical or a driving license exam.
Frequently asked questions
Does this test replace an eye exam?
No. It is a screening for curiosity. Screens show colors in different ways, and only an eye doctor, with calibrated printed plates and other tests, can confirm color blindness and its type.
What is color blindness?
It is difficulty telling some colors apart, almost always red and green (protanopia and deuteranopia), caused by cone cells in the retina that do not work well. It affects about 8% of men and 0.5% of women. Difficulty with blue and yellow (tritanopia) is much rarer.
Is it really free?
Yes, 100% free. No sign-up, no subscription and no usage limits. All Tools123 are free.