Blue Black White Gold Dress Explained The Return Of The Black Blue Dress Illusion And More ZAPAKASA Women Black and Blue Satin Long Formal Dress with 3D Flowers One Shoulder Mermaid Prom Dress with Ruffles Here's why people saw the dress differently. In 2015, a photograph of a dress went viral, dividing viewers over whether its colors were blue and black or white and gold. This optical illusion highlighted differences in human color