eli5 What makes the color green, green?

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Hello all,
I am working on a project that requires me to identify what colors are green. This seems easy enough but I am working with color codes and don’t know where certain colors start and/or cut off.
I am working with RGB and a color can appear completely red with a value of 1 for Green but not appear green at all. Would this still be called green?

In: Physics

4 Answers

Anonymous 0 Comments

No, a color that has any amount of green light in it is not green automatically. If that was the case white, all manner of shades of gray, and as you note pure red but with 1 out of 255 in green would all be green.

The issue is that this is just a question where you cut the color spectrum in to discrete colors. Many cultures will disagree wildly on what color is what color, and many don’t eve have a single word for ‘green’, instead lumping it in with shades of blue to create what linguists call ‘grue’. The of course there are the edge case colors that sit between two colors where you may claim blue and I claim green.

There are no absolute rules. You’re going to have to make a value judgement based on the requirements of the project in question.

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