We all perceive colours differently. Everything depends on the colour receptors and pins in your eyes.
Professor Diana Derval, an expert in neuro-marketing, developed this test that helps you gauge how many of those famous pins you have in your eyes. So look at the image below and count the colours you see.
You perceive less than 20 colour tones:
You only have two types of pins in your eyes, which gives you about the same ability to perceive colours as a dog. You usually wear black, beige or blue colours. 25% of the world's population is dichromat, just like you.
You perceive between 20 and 32 colour tones:
You are trichromat and have three types of pins in your eye (the purple/blue, green and red). You like various colours and can really appreciate them. 50% of the world's population is trichromat, just like you.
You perceive between 33 and 39 colour tones:
You are tetrachromat, just like bees. You have four types of pins in your eye (the purple/blue, green, red and yellow pins). Yellow is a colour that quickly irritates you, and will thus not be found in your wardrobe. 25% of the world's population is tetrachromat.
You perceive more than 39 colour tones:
Come on, you've got to be lying. There are only 39 colour tones in this test, of which your computer probably only registrates 35 properly.