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 @aztrosist_ teies to make sense of the dress that baffled the world. #illusion #memes #classicmeme #blueandblack #whiteandgold #thedress #whatcoloristhisdress #laurelyanny #memehistory #memesexplained A 2015 viral debate over a dress's colors with some seeing blue and black, while others saw white and gold sparked widespread discussion and scientific inquiry. The phenomenon, which began Black and blue or white and gold? The dress color debate rages online That Dress is Blue and Yellow!