In 2015, a photograph of a dress went viral, dividing viewers over whether its colors were blue and black or white and gold. This optical illusion highlighted differences in human color perception Here's why people saw the dress differently. Can you believe its been 10 years already? In 2015, this dress absolutely broke the internet. Some people saw white and gold. Others were convinced it was blue and black. And a decade later? The ELI5:Why does this dress appear white gold to some people and black blue to others? : r explainlikeimfive The dress was a 2015 online viral phenomenon centred on a photograph of a dress. Viewers disagreed on whether the dress was blue and black, or white and gold : r wikipedia Color Debate: The Gold and White vs. Black and Blue Dress TikTok