File:DN SC 85 02753 U.S. Navy officer in tropical dinner dress blue.jpg Wikimedia Commons 2 Pieces Navy Blue Prom Dress, Dark Blue 2 Pieces Formal Dress, Evenin jbydress Modest Blue Formal Prom Evening Dress Size 22w Blue U.S. NAVY MALE CPO ENLISTED DINNER DRESS BLUE JACKET UNIFORM Air Force mess dress for my officer :P: 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