The science behind 'the dress' Gold Sequin Strapless Backless Mermaid Long Prom Dress with Slit Modsele Gabourne Strapless Midi Dress Gold Sequin, XL, Petal & Pup The dress was black and blue, but the conditions of the photograph caused many to perceive it as white and gold, creating debate. Within a week, more than ten million tweets had Black and Blue or White and Gold? How Your Brain Sees 'the Dress' Business Insider