Navy Blue Long Prom Dress with Gold Sequins PromGirl Navy Gold 6 Floor Length Navy Blue Dresses Windsor Male Officer Dinner Dress Blue U.S. NAVY MALE OFFICER DINNER DRESS BLUE JACKET UNIFORM U.S. NAVY FEMALE OFFICER ENLISTED DINNER DRESS BLUE JACKET Service Dress Blue (Yankee) uniform was for "warm weather afternoon and early evening functions such as yachting parties." The uniform was formally phased out in 2011 : r navy