It's pretty simple:
Evil = Red. Obviously. Darth Vader's lightsaber was red. I meanm its just the way it works.
Good = Blue. Also obvious. Look at any anime fighting series. The good guy always has a blue aura. The heros in Japanese games have blue hair. That's just the way it work.
Red + Blue = Purple
Therefore something that is both evil and good (ie, chaos) is purple.
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Epsilon
Evil is lower on the electromagnetic spectrum
Evil = Red. Obviously. Darth Vader's lightsaber was red. I meanm its just the way it works.
Good = Blue. Also obvious. Look at any anime fighting series. The good guy always has a blue aura. The heros in Japanese games have blue hair. That's just the way it work.
Red + Blue = Purple
Therefore something that is both evil and good (ie, chaos) is purple.
-----------------
Epsilon
Evil is lower on the electromagnetic spectrum