In February 2015, a photo of a striped dress posted online unexpectedly turned into a worldwide argument. Some viewers swore it was blue and black, while others were convinced it was white ZAPAKA Women Royal Blue Glitter Tight Homecoming Dress with Sequins Butterflies, Black US8 Blue Homecoming Dresses Dreamdressy Yarah Short Blue Sheath Sequin Homecoming Dress with Feathers Blue 6 What color is the dress? Why do some people see blue and black and some people see gold and white when looking at a single image of a dress? : r askscience How I Flipped My Brain's View of the Black and Blue Dress Jeff Greenhouse