Exploring Color Constancy: The Dress Phenomenon Explained TikTok Scoop Neck Satin Floor Length Black Long Sleeve Open Back Prom Dress Promnova Black Long Sleeve Prom Dress June Bridals Long Sleeve Sparkly Black Girl Mermaid Prom Dress 2021 Bridelily Remember when the internet went absolutely nuts on the colour of a dress? The dress was blue and black. The original viral poster, Caitlin McNeill, later said it was a black and blue dress 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