Is the White color good for wall paint for rooms that are not exposed to the sun?
All modern residential paint is white or an off-white.  

I know the colorist is talking about blues, yellows, greens, pinks etc. -- but it's all pretty much white.  You can't go wrong.  

If you really wanted OSHA safety orange, they do sell that in paint, but nobody wants that in a house.  Or on a house.  If you painted a house that, you'd hear from the HOA or city manager. 

If you want the brightest white that ever was, ask the paint company about the highest reflectivity paint they make, typically a "snow white"... whatever... all those names are made up.