Lilac Purple Prom Dress with Sparkling Floral Print Lilac 12 ELI5:Why does this dress appear white gold to some people and black blue to others? : r explainlikeimfive 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 Black and Blue or White and Gold? How Your Brain Sees 'the Dress' Business Insider