Blonde Although 65% of the population lives in India- not too many Blondes there.Black is the most popular hair color worldwide, in terms of naturalism.Black is the most common natural hair color around the world, followed by brown. Natural Blond is only found in about 2% of the world's population. Red hair is least common at 1-2%.In terms of popular colors to dye hair, platinum, rose gold, dark brown, and ombre are the most popular in 2014 according to Harpers Bazaar.