A blonde person is someone with light coloured hair. It can be spelled either "blonde" or "blond", according to Merriam-Webster's Dictionary. Some people are blonde because they have less pigment in their hair than dark haired people. To be blonde is usually to have blonde ancestors. Then it is genetic - blondes have genes that make them blond. Sometimes it is not genetic - this is called albinism. People can also use chemicals to make themselves blonde. Bleach is sometimes used to make the color of a person's hair lighter.