How to Properly Put Your Name Tag and Ribbon Rack on your Service Dress Uniform 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 Watercolor Ribbons Dress, Blue Stitchy Fish USMC MALE OFFICER BLUE DRESS BLUE WHITE DRESS UNIFORM ("A" AND "B") Uniform Care Guide Dress Uniform USMC MALE ENLISTED BLUE DRESS BLUE WHITE DRESS UNIFORM ("A" AND "B")