How Many Greens Do You See?

Scorpio Moon With Sirius by Concetta Antico

Any one thought that the mutants in the X-Men series were cool?

What if I told you that there is this really cool mutation existing in today’s world called tetrachromacy. What is tetrachromacy? Tetrachromacy is “The condition of possessing four independent channels for conveying color information or possessing four types of cone cell in the eye.” Basically, a person has an extra cone that allows them to see the differences in colors that appear identical to others.

This type of condition has so far shown up only in women. Maureen Seaberb and Concetta Antico are the only two known functioning tetrachromats in America. Antico was tested positive for tetrachromacy in 2012, when her daughter was tested for colorblindness. Her perception for color allows her to excel at being a tetrachromat artist and oil-painting teacher, since she can see more than a trichromat. For more information you can check out her website at

Maureen Seaberb is a journalist and author who finds matching tops and skirts a different shade to her. Seaberb has also had some disagreements over colors, such as rejecting 32 sample colors that were part of a house remodeling project.  She tested positive in 2013 after hearing about the subject on a Radiolab podcast.

So, could you be a tetrachromat? Had any recent arguments about an object being beet red?

Beyond Average Color Vision: An Interview with Tetrachromat Artist Concetta Antico.

Robson, David. (2014, September 5). The Woman with Superhuman Vision.

Lewis, Ricki. (2016, December 25). A Good Mutation: Seeing the World with Extra Cones

Shearer, John. (2012, March). Tetrachromats.