Uniform: Dinner dress blue, female Navy chief petty officers PICRYL Public Domain Media Search Engine Public Domain Search 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 U.S. Navy Blue Dinner Dress Jacket Works Intrepid Museum Navy Prom Dress Halter Neckline, Pageant Dress, Evening Dress, Dance D DressesTailor