People are seeing the dress in varying colors because of the different ways in which they perceive colors. As a result, some are seeing it as white and gold, while others are seeing it as blue and ...

For the record, the dress is definitely black and blue. But it appears white and gold to some people due to a phenomenon called color constancy and the way that our brains interpret colors.

Millions joined in on the viral debate about the color of this $77 lace dress, made by British retailer Roman Originals. Some saw it as blue and black while others saw it as white and gold.

It's hard to believe, but a debate that went viral online over the color of British clothing company Roman Original's dress is now a decade old. The dress, which is in fact blue and black ...