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 MALE OFFICER DINNER DRESS BLUE JACKET UNIFORM Zapaka Women Sheath Bridesmaid Dress With Slit Elegant Sky Blue Pleated Satin Long Evening Dress, Sky Blue US6 Spaghetti Straps V Neck Royal Blue Sleek Evening Dress VQ