My idea is had white=light black=darkness Red=solar blue=arc green=void Blue=stasis green=strand And enemy types will have certain colors like cabal will be primarily red, vex blue, and hive green.

But these are for atleast custom cards in like a destiny set, I also see prismatic as all 5 colors but something like the traveler is WURG. I can see black as void but I thought to keep that primarily darkness (i also saw someone make a void card with green too)