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 Remember "The Dress Illusion"? The dress was a viral phenomenon on the Internet in 2015. Viewers of the image disagreed on whether the dress depicted in a photograph was coloured black and blue, A Line Prom Dress Royal Blue and Black, Evening Dress, Formal Dresses, DressesTailor A Line V Neck Strapless Blue Satin Long Prom Dresses, Blue Satin Long Formal Dresses, US 12 Blue as Pics No Rush