Remember when the internet went absolutely nuts on the colour of a dress? The dress was blue and black. The original viral poster, Caitlin McNeill, later said it was a black and blue dress 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 Here's why people saw the dress differently. The actual dress was black and blue. The confusion came from how lighting and color perception tricked people's brains, making some see it as white and gold. It became a viral example WEDTREND WOMEN Blue Floral Long Bridesmaid Dress with Ruffles High Low Hem A Line Spaghetti Straps Chiffon Wedding Guest Dress The Color Of The Dress According To Science YouTube