In 2015, 'The Dress' became an internet sensation due to a viral debate over its colors. Originally posted on Tumblr, this image divided viewers: some saw it as white and gold, others as blue and black. This sparked discussions that captivated millions, leading to scientific explorations of color perception. Experts revealed that individual variations in brain interpretation of lighting and color impacted how people perceived the dress, making it a compelling case study in human visual perception.