Is the dress blue or gold? The phenomenon originated in a photograph of a dress posted on Facebook in 2015. The dress was black and blue, but the conditions of the photograph Hyacinth House Blue Gingham Prim Maxi Dress Blue Gingham M Cotton Hybrid Gingham Jumper in Kansas Medium Revivall Clothing How "The Dress" Became an Illusion Unlike Any Other Scientific American I've been thinking about "the dress" for 10 years. Here's what I've learned. Mirabelle Dress in Dark Blue Gingham Of Her Own Kind