Why some people can′t recognize certain colors | In Good Shape - The Health Show | DW | 12.12.2013

Visit the new DW website

Take a look at the beta version of dw.com. We're not done yet! Your opinion can help us make it better.

  1. Inhalt
  2. Navigation
  3. Weitere Inhalte
  4. Metanavigation
  5. Suche
  6. Choose from 30 Languages

In Good Shape

Why some people can't recognize certain colors

Only when the photoreceptors in the retina send information to the brain correctly are we able to perceive colors. There are different receptors for red, green and blue light. Working together, they allow us to differentiate between various colors and color nuances. Genetic variations in these cone cells can cause the colors to overlap so that they can no longer be distinguished.

Watch video 04:36