The Internet is obsessed with one question: Is this dress gold or blue? The science behind the dress colour illusion Internet The Guardian That Dress is Blue and Yellow! 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 Men's Black Prom Loafers & Shoes Perfect Tux How I Flipped My Brain's View of the Black and Blue Dress Jeff Greenhouse