Yeah I'd go for it, I did my hair black once, it can drown out your face a bit but I think it works well with the right hairstyles and brings out the blue in your eyes! Even if you find it's not the color for you, it can't imagine it being that much different to the dark brown you are now.
Sure it's a good combo but I actually like the one you already have better. Somehow the pitch black hair on alabaster skin is just a little too much contrast. Dark brown is preferable in my opinion. Try it for a while and see what you like more, you'll look good either way.
On one hand because you have blue eyes, I would think you should go blond, however on the other hand because you have pale skin, I would think you should go red...black wouldn't fit you. Could you compromise and go brown?