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 The dress of many colours: is it blue and black or white and gold? Black & Gold Strapless Off Shoulder A Line Maxi Dress Elegant Prom Gown chiclody Dressgate: If you saw THAT dress as white your brain was working overtime Why did some people see a gold and white dress? Our Brain I've been thinking about "the dress" for 10 years. Here's what I've learned.