ELI5:Why does this dress appear white gold to some people and black blue to others? : r explainlikeimfive Is That Dress White and Gold or Blue and Black? The New York Times Women's German Dirndl Dress Blue Gold XXL 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 Dress: Black and Blue or White and Gold? Optical illusion: Dress colour debate goes global BBC News