Five Favorite Gray Paint Colors! Worldly Gray is one of the warmest grays with a khaki undertone. Repose gray is a cooler gray and really reads gray in any light. Useful Gray is on the warm side with subtle green undertones. Silver Strand is a silvery gray blue that reads gray in darker light, subtle light blue in brighter lights. And Finally Conservative Gray, on the green side and will read subtle green in some lights and gray in others.