10 years since THE DRESS blew up Internet. Two thirds of people saw white and gold. It's an optical illusion caused by weird lighting and an overexposed background. It Is actuallylly blue and black. #thedress TheDress one year on eight things we learned from the viral phenomenon Social media The Guardian Optical Illusion Dark Blue And Gold Dress Here's Why People Saw the Dress Rose Gold Sequin Maxi Dress With Gold Detail Maxi Dresses Saved by the Dress