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 Boardroom Socks Guide to Black Dress Shoes The Gold Dress Or Blue Blue Black Yellow White Dress Blue And Yellow Dress Illusion Dress ELI5:Why does this dress appear white gold to some people and black blue to others? : r explainlikeimfive