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 T Shirt Dresses Boutique Shirt Dresses Pink Lily You Can Now Buy 'The Dress' In Either Blue And Black Or White And Gold Ten years ago, a photo of a dress posted on Tumblr sparked a massive debate: was it blue and black or white and gold? Millions argued online, and even celebrities joined in. Scientists later explained ELI5:Why does this dress appear white gold to some people and black blue to others? : r explainlikeimfive