Women's Blue Watercolor Dress 12th Tribe Optical illusion renews blue and black dress debate nine years on Express.co.uk 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. Wonder Woman? Never heard of her. @haileybieber delivered one of the night's boldest #MetGala moments in a molten gold and cobalt @ysl look that feels straight out of a fashion comic book. Tap the so we know the dress was black and blue BUT that's not what i'm here to discuss : r opticalillusions The white and gold dress, and the illusion of free will Felipe Contreras