This explains how the blue black white gold dress illusion was possible. But it doesn't explain why some people saw it one way and some saw it the other, and no one seemed to see 10 years ago, a simple photograph of a dress sparked a global debate unlike anything seen online before. Posted in 2015, the image caused people to argue intensely over whether the dress 1960s Maisonette Silk Cocktail Dress w Gold Bead & Blue Rhinestone De MRS Couture Women's Vintage Y2K Yellow Green Blue Abstract Shark Tooth Scarf Hem Deep V Neck Strappy Cross Back Stretchy Dress by Pretty Girl Small Etsy