Ten years ago, a photo of a dress posted on Tumblr sparked a massive debate: was it blue and black or white and gold? Millions argued online, and even celebrities joined in. Scientists later explained Cavosen Long Dresses for Women Formal Blue Elegant Sleeveless A Line Party Dress V Neck Color Block Floor Length Maxi Dress Flowy Bodycon Wrap Wedding Guest Dress Evening Prom Walmart.com Women's Blue Maxi Dresses: Find Timeless Maxi Dresses for Women Kohl's GALLE Blue Faux Pearl Embellished Pleated Maxi Dress L Blue MmE5MTRjYWQ4MDNi.mp4 Ten years ago, a photo of a dress posted on Tumblr sparked a massive debate: was it blue and black or white and gold? Millions argued online, and even celebrities joined in.