text: Most likely yes. Also remember blonde hair does get darker eventually. Mine's turning dirty blonde (from blonde). My dad's hair is black and my mother's is brown. I THOUGHT I got blonde hair because my grandfather had it, however, my dad's hair used to be blonde and it turned to black. Also I am the only one besides my grandfather to have hazel eyes.... I am the only blonde female. I think they can occur out of nowhere. Because you can't know everyone you are related to nor can you meet them. Some families go many generations back. Like I am Cherokee, but I am 100% white and blonde. So I believe someone along the way might have had light hair and blue eyes... and if these are infants blue eyes change sometimes and so does the light hair. Don't worry so much. Facial features happen to tell everything and if he really is that insercure... paternity tests.