1. Check to see if there are any updates for the drivers, and if so, install them.
2. Connect an external monitor and see if it has the same problems. If it does, then the problem is not with your laptop monitor. If the problem disappears, then the problem is not with your graphics card.
3. Try lowering your screen resolution. If that works, then your graphics card probably needs to be replaced.
4. If it is a driver problem, the issue 'usually' won't appear in BIOS. So try loading BIOS at start up and see if the colors are correct.