Elegant V Neck High Slit Black Long Prom Dress, V Neck Black Formal Dr Simplepromdress sd hk One shoulrder prom dress long evening blue and black Gradient dr SD Dresscode & Fashiontrends It's been 10 years since this dress was posted. People debated which colours it was, and it was later confirmed to be black and blue. Amazon.com: Beaded Halter Short Ombre Chiffon Corset Prom Homecoming Dress Black Blue US 2 : Clothing, Shoes & Jewelry One Shoulder Sexy Prom Dress,dark Blue Prom Dresses on Luulla Berylove Women Black and White Formal Dress A Line High Neck Maxi Evening Dress, Black US14