File:U.S. Navy FMF corpsman in dinner dress blue jacket uniform, 2016.jpg Wikimedia Commons 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 MC Dinner Dress Blue Jacket Elegant Off Shoulder Navy Blue Evening Dress with Cape SS206 Navy Blue 14 Elizabeth K GL1506 Prom Dress Navy NewYorkDress U.S. NAVY FEMALE CPO ENLISTED DINNER DRESS BLUE JACKET UNIFORM