Online color vision test

Color Blind Test: what number is hiding in the dots

Also known as: color vision test online, red-green color blindness test, colour blindness test, dot plates with numbers

Six plates of colored dots, each hiding a number. Type what you see. The first plate is a control, the rest check whether you can tell red from green. It takes about two minutes. These are our own plates, not the Ishihara test. Your result is free once you enter your email: we’ll show it to you and send it to your inbox.

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2 minutessix plates
Red and greenthe most common type
No sign-up10 minutes a day
Progressresults are saved

What it trains

What the color blind test checks

Color blindness (color vision deficiency) most often affects red and green: it’s hard to tell apart red and green shades of the same brightness. Screening uses plates of dots in different colors where the number is visible only if you tell these colors apart normally.

Our test has six plates: the first is a control (everyone can see it), the rest are red-green. Based on your correct answers, we give a rough estimate. The result depends on your monitor, brightness, color settings and lighting, so it’s not a diagnosis: an accurate check requires an eye doctor and standard plates.

You think you mix up red and greenA quick rough self-check
You’re curious about your color visionSix plates and a clear result
You want a hint before an eye examThe result can suggest whether to see a doctor
You want to check your childNumber plates work for school-age kids who know their digits

Telling red from green

The main job of the plates.

Control plate

Shows that your screen and lighting are good enough for the check.

Attention

You need to make out the numbers, not guess them.

No pressure

If you can’t see a number, press “I see nothing”: that’s an answer too.

Rules

How to play

Get ready
Screen brightness 70–100%, good lighting, no color filters or night mode.
Look at the plate
A circle of colored dots with a number appears. Enter the number on the keypad.
If you can’t see it
Press “I see nothing”: for some plates that’s a normal answer.
Result
After six plates you’ll see how many answers were correct and a rough estimate.

Play online

Color blind test online

Press “Start” and enter the numbers from the plates. You can play 10 minutes a day without signing up.

Color Blind Test

Six plates made of colored dots, each with a hidden number. Enter what you see. The first plate is a control; the rest check how you tell red from green.

Free play left today without signing up: 10 min

Method

Where these plates come from

Plates of colored dots for checking color vision were invented in the early 20th century, and doctors still use them today. The idea is that the colors of the figure and background are chosen so that, with a color vision deficiency, the number blends into the background.

Our plates were drawn from scratch and are not the Ishihara plates or any other standard medical plates. That’s why the test is only for a first rough check. It doesn’t replace an exam by an eye doctor and doesn’t make a diagnosis.

6PlatesOne control, five red-green.

2Digits per numberA two-digit number.

testResultCorrect answers and an estimate.

Who it’s for

Which ages

Adults

A rough self-check of your color vision.

Kids

Fine for school-age kids who know their digits; for children, a standard check by a doctor is better.

60+

The plates are large and nobody rushes you. Good lighting matters.

Questions

Frequently asked questions

Can this test diagnose color blindness?

No. It’s a rough on-screen check. A diagnosis requires a doctor: colors depend on your monitor, and standard medical plates are printed with special inks.

What does “I see nothing” mean?

For some plates it’s a normal answer: people with a color vision deficiency may find that the number on red-green plates blends into the background.

What if I fail the control plate?

Then the result can’t be judged: most likely the problem is screen brightness, night mode or lighting. Check your settings and take the test again.

Should I wear glasses or contacts?

Take the test in the glasses or contact lenses you wear every day.

Is this a medical exam?

No. It’s a trial check on a screen: the result depends on your monitor, brightness and lighting, and it doesn’t diagnose anything. If you have concerns, see a doctor.

Save your results and track your progress

Free sign-up: round history, a chart by skill and a daily workout of 5 exercises. No credit card needed.

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Color Blind Test: what number is hiding in the dots