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25% of the people have a 4th cone and see colors as they are, by Prof. Diana Derval, LinkedIn

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I didn't realize people see colors differently.

You see less than 20 color nuances: you are a dichromats, like dogs, which means you have 2 types of cones only. You are likely to wear black, beige, and blue. 25% of the population is dichromat.

You see between 20 and 32 color nuances: you are a trichromat, you have 3 types of cones (in the purple/blue, green and red area). You enjoy different colors as you can appreciate them. 50% of the population is trichromat.

You see between 33 and 39 colors: you are a tetrachromat, like bees, and have 4 types of cones (in the purple/blue, green, red plus yellow area). You are irritated by yellow, so this color will be nowhere to be found in your wardrobe. 25% of the population is tetrachromat.

You see more than 39 color nuances: come on, you are making up things! there are only 39 different colors in the test and probably only 35 are properly translated by your computer screen anyway :)

It is highly probable that people who have an additional 4th cone do not get tricked by blue/black or white/gold dresses, no matter the background light ;)

Important information about this post:

* the number and distribution of color cones can only be measured by a special device, therefore the categories proposed in this message are of course just indications.

* the shared percentages are as always an approximation as the only way to have accurate data would be to measure everyone

The sources used are detailed in chapter 5 of Diana Derval's book and refer for instance to this published article ... 

The royalties of the book are donating to a foundation.

See also: Diana Derval, The Right Sensory Mix: Targeting Consumer Product Development Scientifically, Springer 2010


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