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 So I searched up the black and blue dress : r opticalillusions What color is it? The Dress Debate: Science Explains Why Some See Blue And Black And Others White And Gold White and gold or blue and black what colour is the dress? An eyewitness gives a definitive answer The Independent The Independent