Your definition of color is based only on human perception? Is purple a color for a mantis shrimp?

Edit: I guess not in a pure sense because it's still two wavelengths of light. Perhaps a mantis shrimp can detect a totally different wavelength and sees it as "purple" or something.

Now I'm thinking about how we don't know how other humans interpret colors. Like what I see as red, you may see as blue. Ugh.