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 White or blue? Neuroscientist solves mystery of dress that broke internet in 2015 World News Essential Summer Recipe: Creamy Blue Cheese Dressing The Kitchn The dress: Celebrities join the white and gold or blue and black debate Daily Mail Online Iceberg Lettuce Salad with Blue Cheese Dressing Everyday Gourmet Blue Cheese Dressing