You see colour using three different kinds of cones in our eyes, and these cones can be either red, blue, or green. So where does yellow come in? Green consists of yellow and blue – but how would you only see yellow and not the blue that would make it green?
In: Biology
You’re thinking of mixing paint where yellow+blue=green. With light color mixing works differently – it’s red+green=yellow. If you add blue to that (red+green+blue) you actually get white.
Because your eyes are based on seeing light they see the red green blue light mixing.
If you open a paint program on your computer you can experiment with how red green and blue light mixes using the color picker, because monitors also work by red green blue light.
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