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 Picture Of Viral Blue And Black Dress Also Shows White And Gold, And Twitter Is Arguing Over It Again Evie Magazine Color Debate: The Gold and White vs. Black and Blue Dress TikTok The Dress: White and Gold or Blue and Black? TikTok 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