Elizabeth K GL1506 Prom Dress Navy NewYorkDress 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 US Navy Dinner Dress Blue Jacket of Frederick Becton Patriots Point Naval & Maritime Museum Marlow White Navy Blue Military Uniform for Men (Size 39S) Navy Blue Maxi Velvet Formal Prom Evening Dress TS2601 Size 4 Navy