It depends on the vehicle. I am assuming that you are talking about a Sahara. My understanding, and anyone can flame me if I'm wrong, is that the fender paint is the color code of the vehicle, and they are the same. This is different than a Sport or SE where the fenders are black. It is best to list the year and make, in your OP, just in case the fenders were painted on a Sport.
If you have lots of pebble marks, or you don't want that touch up look, a glop of paint, I would get a Spray Paint Can(color coded of course), and a Can of the Gloss Overcoat, lightly wet sand the area (2000 grit), paper and taped off a small section around the scratch, and Spray it. Then after it dries, apply the gloss overcoat. This way it will not look like a touch up.