Mine are in between, but some hairs are turning grey. I color my own hair and do try to color my brows, but some of those grey hairs are very stubborn.
I would pluck them out but my mom's words keep coming back to me, "If you pluck a grey hair, two will grow back in its place." Okay, maybe not true, but I keep those few trimmed back, but not plucked.
Oh, and I love the Smashbox brow filler. Blends in beautifully and makes them look fuller:
http://www.smashbox.com/product/6026...011/index.tmpl