55 My favorite Blue dresses in movies ideas blue dresses, movies, costume design 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. Scientists later explained Exploring Color Constancy: The Dress Phenomenon Explained 10 years ago, this dress was posted on social media causing a viral debate on whether it was blue and black or white and gold. The phenomenon revealed differences in human color Science of 'the Dress': Why We Confuse White & Gold with Blue & Black Live Science