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I recently watched the video This Is Not Yellow explaining how red, green, and blue pixels can be used to create images of all other colors. Since yellow is created with red and green pixels, how is a person with red-green colorblindness (me, for instance) able to perceive yellow on a monitor?

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Normal people see color due to the bellow mentioned combination of red, green and blue:

enter image description here

But due to genetic factors, The graph Distorts:

enter image description here

Now,If consider the normal Color code for yellow:

Yellow = R(255) + G(255) + B(0)

Or in other words

Max. Red + Max. Green + no Blue = Yellow

That means even if you can see a little of Red and Green, you can still a little deeper or lighter shade of yellow.

So Summing it up in the images:

enter image description here


enter image description here

Red ColorBlind

enter image description here

Green ColorBlind

enter image description here

Blue ColorBlind


Coblis — Color Blindness Simulator

A quick introduction to colorblindness

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What is the effect of having mutated green cones? Are they non-functional, of reduced sensitivity, or something else? – Mark H Jul 15 '14 at 10:50
@MarkH: Can you ask it as a separate question? – Devashish Das Jul 17 '14 at 4:56
@MarkH: Hey, hope my answer solved you query, if so, please mark this as answer. – Devashish Das Jul 20 '14 at 16:49

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