Here's why it's tricky:
* Hair color is a descriptor, not a single color. There are countless shades and hues of hair color, from black to blonde to red and everything in between.
* We often use "hair color" to refer to a specific shade. For example, someone might say "I want to dye my hair a dark brown color." In this case, "hair color" is being used to refer to a specific shade of brown.
So, while there is no single "hair color," it's a term we use to describe the many colors hair can be.