Mora 164 crook knife, dark blade?

[lhughes]

Hi all,
I'm new here, is this the right place to ask?

I'm quite inexperienced in the matter but I recently received a new Mora 164 crook knife which I ordered online, and it seems to be a very odd colour.
The blade is a dull brown, almost like copper. I would attach pictures but as a new member I don't seem to be able to.
Is this normal?

Any advice is much appreciated,
Luke.