Is fir ever green

Fir wood is brown, like most wood.

The needles of fir trees, however, are indeed often green.

You may be asking if fir is an "evergreen", and the answer to that is also yes. All members of the pine family are evergreen except for the larches and the golden larch (which isn't a "true" larch, and is actually more closely related to the firs than it is to the other larches).