How many colors do you see? This simple test may (or may not) reveal something fascinating about your eye

(WITI) -- It's a simple question that drove the internet BONKERS last week -- even dividing the internet: "What color is this dress?" Now, there's another, more complicated question: "How can two people see the same thing two different ways?"

Neuro-marketing expert Professor Diana Derval posted a tutorial on the basics of vision to LinkedIn.  The test explains the variations in colors that different people see.

Derval says the number of colors you see depends on the number and distribution of cones, or color receptors, in your eyes. Only 25% of the population has a fourth cone to see more accurate colors.

Take the test.  Count the colors you see in this spectrum:



Fewer than 20 color nuances: You are a dichromat, like a dog, and have only two types of cones. Derval said you are likely to wear black, beige and blue (25% of the population).

Between 20 and 32 color nuances: You are a trichromat. You have three types of cones in the purple/blue, green and red area (50% of the population).



BUT, is this color test truly accurate?

The online debunking  site Snopes reports computer monitors are not capable of displaying the range of colors required for this test. Snopes says: