this post was submitted on 15 Jul 2023
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Explain Like I'm Five

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How do computers make any color using red/green/blue, when paints make every clor using red/yellow/blue?o (wirebase.org)
submitted 1 year ago by [email protected] to c/explainlikeimfive
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Im always confused by RGB. I learned that if you want orange, you mix red and yellow. If you want green, you mix blue and yellow, if you want purple, you mix red and blue.

How is it that computers need green and not yellow?

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[–] Puttaneska 1 points 1 year ago

Computers make yellow with red + green..

Btw the three colour channels, red, green, blue each have 8 bits, 2^8 = 256. And for all three channels there are 256 x 256 x 256 = 16,777,216 permutations of possible colours.

If you have a Mac you can use Colour Picker (in Applications/Utilities) to hover over your screen and see the channel mixes of colours under the cursor.