U.S. Navy Blue Dinner Dress Jacket Works Intrepid Museum Jane Summers Jocelyn Backless White Bridal Shower & Rehearsal Dinner Dress with Ribbon Tie 12 White with Blush Pink Ribbon , female , adult Sky Blue Corset Cutout Long Formal Dress with Slit, Sky Blue Custom Size United States Air Force Blue Satin Special Occasion & Military Ball Dresses Promfy 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