U.S. NAVY MALE OFFICER DINNER DRESS BLUE JACKET UNIFORM US Coast Guard Dinner Dress Blue Jacket worn by Commander Merle Smith Jr. National Museum of African American History and Culture Us Navy Dress Blue Uniform eBay 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