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 Decision Making Biases in Group: Is the Dress White and Gold or Blue and Black? Applied Social Psychology (ASP) The Pennsylvania State University ELI5:Why does this dress appear white gold to some people and black blue to others? : r explainlikeimfive Black and Blue or Gold and White? The truth behind the dress