Black Sequins Formal Dress, Black and Gold Sequins Formal Dress, Black Sequins Evening Dress, Black Sequins Prom Dress, Black and Gold Sequi KENDALL Halter Neck Velvet Sequin Gown Black M A woman in a striped dress stands from behind in a room with a black and white checkerboard optical illusion creating a tunnel effect, accented by blue abstract shapes. on Craiyon V Neck Strapless Long Sequin Prom Dress PromGirl Black 4 Sparkle Shine Black Prom Dresses Long & Short Prom Gowns Stacees What color is the dress? Why do some people see blue and black and some people see gold and white when looking at a single image of a dress? : r askscience