Formal & Dinner Dress Uniforms Shop Your Navy Exchange Official Site 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 Uniform: Dinner dress blue, male Navy chief petty officers PICRYL Public Domain Media Search Engine Public Domain Search U.S. Naval Reserve c1923 Cadet's "Evening Dress, Blue" Jacket Uniform: Tropical dinner dress blue, Navy enlisted men, ranks E 1 through E 6. Country: Unknown Stock Photo Alamy