The dress was a viral online phenomenon in 2015, centered on a photograph of a dress that people disagreed on whether it was blue and black or white and gold. Within a The Dress of viral internet fame. Actual colour black and blue on the Download Scientific Diagram so we know the dress was black and blue BUT that's not what i'm here to discuss : r opticalillusions A Line V Neck Velvet Tulle Dark Blue Long Prom Dress, Dark Blue Long E shopluu 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