Originally Posted by Rikter

The stealership (dealership) will more than likely sell you touch-up paint. I cannot be 100% sure on this but a phonecall to your local parts department at the nearest nissan dealership will confirm this. When I worked at Honda we sold them in nailpolish bottles as well as paint-pens with a finer tip.

The dealership will be your best bet too because it will be colour coded to your vehicle for an exact (most of the time) match.