So I searched up the black and blue dress : r opticalillusions Blue black or white gold? The dress debate is over The science behind the dress colour illusion Internet The Guardian The Science Behind the Dress Illusion Eyepic Eye Care Is That Dress White and Gold or Blue and Black? The New York Times 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