I've never understood the white gold side of the dress illusion but after modifying someone else's picture to make this one I can (kind of) see it. : r opticalillusions GL3055 Deep illusion V neckline Sequin Mermaid Dress GLS Black Long Sleeve Mermaid Sequin Prom Dresses Gold Lace Ten years ago, a photo of a dress posted on Tumblr sparked a massive debate: was it blue and black or white and gold? Millions argued online, and even celebrities joined in.