The fretboard will age to that color. When I first got my Jag-Stang, the fretboard was almost orange, now it's a dark dark brown color.
I use Guitar Honey on mine for the same purpose. Rosewood needs some oily moisture so it does not crack. I usually do it after I clean the fingerboard off while restringing, it also tends to make the grain pop, I think they put some wood conditioner in there.
