Nikon d3100 Manual show you very well that how to Create a Custom Color Profile for Your Camera. But in this case You will need to:
- shoot in Raw file format
- have access to a ColorChecker target
- download Adobe DNG Profile Editor for Windows or for OS X and/or ColorChecker software
You have to Profile Your Camera With Adobe DNG Editor. That means you profile would be build completely with ADOBE Editor. Thus check out manual and follow all instructions given in it.