Historically, sailors didn't have a specific hair color. Their hair color varied just as much as any other population group.
Here's why the question is tricky:
* Stereotypes: Popular culture often depicts sailors with dark, often unkempt, hair. This is likely influenced by stories of long sea voyages and limited access to grooming products.
* Modern Navy Regulations: In some modern navies, sailors are required to maintain their hair in a certain style and length, but there are no color restrictions.
Ultimately, the color of a sailor's hair depends on the individual.