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 Kate Barton Women's Summer Dress Blue Floral Pink Azure Cotton Stonewashed Linen White and gold dress: Here's the science behind why some people see blue The Mirror Why the world couldn't agree on the color of 'the dress' New York Post White and gold