
Colors appear yellow because you aren't used to what a properly calibrated display looks like. The problem is that most displays skew WAY too blue, especially televisions in a big-box store, in an appearance to appear brighter to your eyes. Rest assured, the display on a Nokia Lumia 2520 is very accurate, and literally beats the pants off of what the Surface 2 offers (it's color gamut is more limited in comparison).
If you want an easy way to tell, try looking at some reds and blues on a Surface 2 compared to a Lumia 2520 in a Microsoft store. The Lumia 2520 is far richer.
