Iin, two different colors in head and body hair (never dyed!)

My main natural hair color is brown, like my father, but I also seem to inherit some of my mom's blonde hair, a bit in my bangs, my mustache and arm hair is blonde, yet my beard is brown like the hair on my head. My chest hair and... Well you know is dark brown. My leg hair is a mix, but mostly brown. And this is naturally occurring, I never dyed my hair and I really don't care to.

Is it normal my hair is two different colors?