10 years since THE DRESS blew up Internet. Two thirds of people saw white and gold. It's an optical illusion caused by weird lighting and an overexposed background. It Is actuallylly blue and black. #thedress Optical Illusion White Gold Dress Debate The Dress Debate: Blue Or Black? Settle This Once And For All! ELI5:Why does this dress appear white gold to some people and black blue to others? : r explainlikeimfive 10 years since THE DRESS blew up Internet. Two thirds of people saw white and gold. It's an optical illusion caused by weird lighting and an overexposed background. It Is actuallylly blue and black. #thedress