The Dress: Black and Blue or White and Gold? TikTok Evening Gown Gold Long Sleeve Mermaid Dress Gorgeous Rose Gold Mermaid Long Sleeve Prom Dress 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 Blue and Black or White and Gold Dress Optical Illusion Explained TikTok 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 so we know the dress was black and blue BUT that's not what i'm here to discuss : r opticalillusions