Easy Color Blind Test
14 plates, each with one large digit. Tap the number you see and get your result in about a minute.
- 14 plates
- About 1 minute
- Type and severity
Want a finer severity estimate? Take the full 20-plate test.
Before you start
- Turn screen brightness up and switch off night mode, blue-light filters and colour-inverting settings.
- Hold your phone or sit at a normal reading distance, in daylight or a well-lit room.
- Give each plate 3 to 5 seconds. Your first impression is the answer that counts.
- If you wear glasses for reading, keep them on.
How the easy test differs from the full test
Every plate shows a single digit from 0 to 9, drawn with thick strokes and larger dots, and the colour difference between the number and the background is about twice as strong as on the faintest plates of the full test. People with typical colour vision should read every plate without straining.
You answer by tapping a digit, which takes you straight to the next plate. If you can't see a number, tap "I can't see a number". There is no penalty for that.
What the easy test can and can't tell you
- It picks up strong red-green deficiencies and dichromacy, and tells protan from deutan.
- Two blue-yellow plates check for tritan deficiency.
- Mild and moderate deficiencies usually pass this test. If you suspect a weakness, take the full 20-plate test as well.
- Like any screen test, it is a screening aid, not a diagnosis.
Questions about the easy test
Why is this test easier?
The numbers are single digits drawn with thicker lines and bigger dots, and the colours of the number and the background are further apart. You also answer with one tap instead of typing.
Which test should I take?
Start with the easy test if the full test felt too hard or you are testing a child. Take the full test if you want a finer severity estimate, or if you passed the easy test but still notice trouble with colours.
I missed a plate. Am I colour blind?
Not necessarily. One or two misses are common and are scored as normal or borderline. Check your screen settings and take the test again. If the same plates keep fading, see an optometrist.
Want a more detailed result?
Take the full 20-plate test