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 Black & blue or gold & white? Mystery of the dress solved The Economic Times The actual dress was black and blue. The confusion came from how lighting and color perception tricked people's brains, making some see it as white and gold. It became a viral example Sparkle Two Pieces Rose Gold Sequin Long Prom Dress JLDressCA