Blue Formal Dresses & Evening Gowns, Blue Formal Dress, Blue Maxi Dress, Blue Satin Dress, Light Blue Satin Dress, Blue Evening Dress Etsy Dark Blue Evening Dress from Satin XXXL Dark Blue Stretchy 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 File:U.S. Navy evening and dinner dress blue uniforms, c. 1967.jpg Wikimedia Commons