New Colors

My fiance and I are considering different color options because his brother's fiance was copying literally everything of ours since we were friends on Pinterest. I have since made my board private. Our colors were originally maroon, silver and black, but now I'm not sure what colors to go with. We want to keep the guys in black tuxes. I am leaning towards having them in the black tuxes with a black tie and vest that way no matter what we end up picking for bridesmaids dresses they will match and his fiancee won't have any clue what our new color. Can anyone recommend some color options? Not a fan of yellows or oranges. I also don't like black and blue together.