Wedtrend Women Royal Blue Prom Dress Mermaid Spaghetti Straps Satin Formal Evening Dress with Split Front, Royal Blue US6 3.B.4. Dinner Dress Blue (DDB) Dinner Date Maxi Dress Blue Peppermayo 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 Shim Blue Evening Dress Party Dresses XXL Blue Satin