The Science Behind the Dress Illusion Eyepic Eye Care Long Sleeve Rose Gold Maxi Dress With Sequin Top Mermaid Long Sleeve Rose Gold Sequin Dress fitted lace wedding dress Mermaid Long Sleeve Rose Gold Sequin 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 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 Neuroscientists Explain Discrepancy Behind "The Dress" Illusion