I love the people that say "not EVERY color, because I don't want to see x, y, or z!"
That's the point in customization, you make your armor the color you like it, and I'll make mine the way I like it. The second you start restricting things because you don't like it, is the moment you become Bioware's Art Department.
I should have clarified my comment a little better. I don't mind any colors being in the game but they need to restrict how they can be used. If I can take a dye can color my whole chest piece pink it will look ridiculous and take away style from the game. You need to limit colors to where and how they can be used in the game. Give customization but still guide people to a specific aesthetic.