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?
Normal people see color due to the bellow mentioned combination of red, green and blue:
But due to genetic factors, The graph Distorts:
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: