I have never colored my hair, except for whitening things for the day to allow me to play an older person for a community play for which I was performing.
My beard is mostly grey, with some reddish brown streaks in it, but my hair is still its normal youthful color, except for a few stragglers around the edges.
I have had people ask me, since I dye my hair, why do I not dye my beard to match.
DOH!!
The fact that my beard is almost Santa Clause and my hair is almost Beatles is completely normal for me at this time.
I can not even tell you how many women have asked me to color my beard to match my hair, since I did such a good job of dyeing my hair.