Proof the Dress Is Blue PS Tech In 2015, a photograph of a dress went viral, dividing viewers over whether its colors were blue and black or white and gold. This optical illusion highlighted differences in human color perception 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 Blue Cheese Dressing That Dress, and the Humbling Reality of Others' Perceptions The Wisdom Daily BLACK and BLUE DRESS or WHITE and GOLD DRESS?! Biggest Debate of 2015 Optical Illusion Dress YouTube