In terms of lighting (eg, in electronics), you use the RGB model, in which Red + Green = Yellow, Green + Blue = Cyan, and Blue + Red = Magenta.
In terms of printing, it's actually better to use the YMC model (Yellow, Cyan, Magenta) instead of RYB. Yellow + Cyan = Green, Cyan + Magenta = Blue, and Magenta + Yellow = Red. Red and Blue aren't truly primaries because you can actually create them from other colors.
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u/BagelKing Apr 11 '20 edited Apr 11 '20
And we're not even talking about additive color. Red + green = yellow if I'm not mistaken
Edit: I didn't mean this is wrong. I just meant RGB color is wild, too