I've been thinking about "the dress" for 10 years. Here's what I've learned. 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 RevK's ramblings: Blue, Black, White, or Gold dress Blue Striped Short Sleeves Classic Lolita OP Dress with Lace Hem