Red is energizing and suggests a "get up and alert to focus" lifestyle. 
 Green is that color that signifies forward movement, much like a green "go" traffic light.
Blue is calming and lends itself to peaceful lifestyle setting.
Full Spectrum White has all the colors of the sun at 12pm.  A balance of ionic output that the body can choose all its own.  Much is written about the therapeutic effects of full spectrum white light.