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. Scientists later explained The Dress white & gold or blue & black? Everything else Quarter To Three Forums 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 The Science Behind the Black and Blue (or White and Gold) Dress The Science Behind the Dress The New York Times I've been thinking about "the dress" for 10 years. Here's what I've learned.