United States Navy Service Dress Blues Uniform Lieutenant History in the Making 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 Marlow White Navy Blue Military Uniform for Men (Size 39S) Dark Blue Tulle Sequin High Low Prom Dress, Blue Evening Dress US 4 Dark Blue The Navy Dress uniforms! : r navy U.S. Naval Reserve c1923 Cadet's "Evening Dress, Blue" Jacket