Comments on: Online Multiple Choice Color Blindness Test

By: James

James — Fri, 20 Aug 2010 09:10:12 +0000

I have always had issues with pinks and greys… can never be a real cook..

By: Adam

Adam — Mon, 09 Nov 2009 03:28:04 +0000

I am deutéranomaly or whatever, green deficient my eye doctor said. The problem with this is I can distinguish green from other colours perfectly. All my life people have made fun of me for mistaking blue and purple. The truth is I can’t see purple. It is blue to me. If I stop and force myself I can often see the purple in the blue but green and red are NEVER a problem.

By: Brian

Brian — Sun, 25 Jan 2009 01:10:34 +0000

I guess I should go see an eye doctor to be 100% sure. Thanks for the help.

By: Daniel Flück

Daniel Flück — Fri, 23 Jan 2009 20:56:52 +0000

Brian, it is very difficult to tell the difference between dichromacy (tritanopia) or anomalous trichromacy (tritanomaly) – specially online. So you just have to live with the result as is.

And the other number tries to give a hint, if you are really colorblind or not. If it would be only 20% you could maybe also be not colorblind. All online tests or only hints and can’t tell anything for sure.

By: Brian

Brian — Fri, 23 Jan 2009 20:11:00 +0000

Thanks for putting this link up. It was an interesting test. But I have a question about my results that maybe you can help me with.

Estimate color deficit probability: 73%
Protanopia: 0
Protanomaly: 0
Deuteranopia: 0
Deuteranomaly: 0
Tritanopia: 55% (6/11)
Tritanomaly: 57% (4/7)

With the numbers being so close together, how do I know if I have tritanopia or tritanomaly? Also, what is the estimate of deficiency number for? One again thanks for posting the link.