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 Is this dress Blue Black and blue dress, Dress, Blue dresses Now that FINALLY explains it TikTok Mystery Color Solved For Viral Optical Illusion Dress The Dress Debate: Science Explains Why Some See Blue And Black And Others White And Gold so we know the dress was black and blue BUT that's not what i'm here to discuss : r opticalillusions