Navy Ecru Sleeveless Illusion Floral Embroidery Sheath Dress Adrianna Papell Here's why people saw the dress differently. Blue and gold dress illusion hi res stock photography and images Alamy Is it blue and black or white and gold? A #viral optical illusion has been used to test a new #algorithm that delves into differences in colour perception https: t.co Pc9zLOTVxh #thedress #opticalillusion #optical # Black and blue Activating TOK The Science Behind the Dress The New York Times