The science behind that absurd color changing dress, explained Vox 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 Photo finally solves the black and blue white and gold dress debate Optical illusion: Dress colour debate goes global BBC News What color is the dress? Why do some people see blue and black and some people see gold and white when looking at a single image of a dress? : r askscience