What colour is hair?

The colour of hair is determined by the amount of melanin it contains. Melanin is a pigment that gives hair its colour, and it can range from very little to a lot. The more melanin hair has, the darker it will be.

There are two main types of melanin: eumelanin and pheomelanin. Eumelanin is responsible for brown and black hair, while pheomelanin is responsible for red hair. The amount of eumelanin and pheomelanin in hair can vary from person to person, which is why there are so many different hair colours.

Hair can also be affected by other factors, such as age, sun exposure, and genetics. As people age, their hair can become lighter or greyer. Sun exposure can also lighten hair, and genetics can determine the overall colour of a person's hair.

Here are some of the most common hair colours:

* Black

* Brown

* Red

* Blonde

* Grey

* White