An image goes viral online and sparks a debate about the true color of the dress. Is it blue and black or white and gold? : r Noticiasatrasadas Prom Dresses Royal Blue Regal Styles Lady Black Tie The Dress Debate Black and Blue or White and Gold British Vogue British Vogue 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 perception