Is This Dress Blue And Black Or White And Gold? Here's What The Experts Say What color is this dress and why is everyone on the Internet arguing about it? PhillyVoice The Dress Illusion WHITE & GOLD BLUE & BLACK YouTube The Science of Why No One Agrees on the Color of This Dress WIRED 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