Blue Green Mother of the Bride or Groom Dresses Dress blues are the formal uniform worn by U.S. Marines for ceremonial occasions, official functions, and formal events, featuring distinctive dark blue coats, light blue trousers, white belts, and medals or ribbons Enlisted Blue Dress A (medals) Blue Dress USMC Uniform Guide How to prepare your Dress Blues for the Marine Corps Ball , Heres a quick tutorial on proper medal and ribbon placement, EGA orientation, button alignment, and final uniform preparation (IP) using