US Coast Guard Dinner Dress Blue Jacket worn by Commander Merle Smith Jr. National Museum of African American History and Culture MC Dinner Dress Blue Jacket Female Officer Dinner Dress Blue US Navy Male Officer Dinner Dress Blue Jacket used 40 Regular (34 Sleeve) Black (USNA Flying Cross) 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