ELI5:Why does this dress appear white gold to some people and black blue to others? : r explainlikeimfive CMV: Change my view from seeing this dress as blue and black to seeing it as white and gold. : r changemyview 10 years ago today, this infamous dress was posted on the internet, causing the viral debate on whether it was blue and black or white and gold. The phenomenon revealed differences in Catherine Regehr Lace Pattern Knee Length Dress in Neutrals, Women's L 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