It really depends on what the others want as well but the way I see it purples are too... Erm... fruity? ( I don't think that's the right word but it's close enough. When someone says empire to me I think red, black, blue and white and I get that purples symbolise regality and nobility but I just don't feel having something that vibrant, no matter how dark, would make people think of empires and power. I suppose we could eventually do a poll maybe? When everyone who puts forward a colour has.