So, what's with the grey?
Grey, on the other hand, cannot be associated with any political, religious, racial, ideological, or other group.
Some people identify red with communism, some with conservatism, and yet others with libertarianism.
But what about grey? Where did you see a grey hue in political discourse? There isn't any. Because it's an unappealing color to use as an emblem or flag for a political party.