Lucy Hair Color: Blonde (Fairy Tail) vs. Black (Peanuts)

Lucy's hair color varies depending on the version of Lucy you're referring to:

* Lucy Heartfilia (Fairy Tail): Lucy's hair is blonde.

* Lucille "Lucy" van Pelt (Peanuts): Lucy's hair is often depicted as black in the comic strip.

Please specify which Lucy you are asking about for a more accurate answer.