25% of the people have a 4th cone and see colors as they are

Given the sudden interest for the color of dresses and vision, here some of the fascinating findings we did recently.

The color nuances we see depend on the number and distribution of cones (=color receptors) in our eye. You can check this rainbow: how many color nuances do you count?

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

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

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 ;)


I see 21 colors. I had no idea there are so many more.

I see 35-39 colours, and I hate the colour yellow. That was actually what made me curious enough to stop scrolling and count. Who knew there was a scientific reason behind my colour preferences?

So the idea here is that what I see as annoyingly, garishly bright, most people don’t see as clearly, and that’s why it’s “cheerful?” (I’ve never understood that description of yellow.)

I barely saw 18 or 19. Dang :/

Im fucking colorblind

I saw 38, and I’ve only recently learned to like yellow when it’s offset by other colors. It took a long time for me to like it at all. I know from taking other tests that the one color my eyes are missing is probably in the green-blue spectrum, but honestly, the Dress thing drove me crazy because how the fuck did anyone think it wasn’t blue/black lol.

I count 42. o_O

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