Color Notes - Making Grey/Gray

Obviously, Black and some White makes gray.  Here is another way.....combine two complimentary colors together and you get gray.  Try this, take red and add green to gray it down.  Keep adding green until you end up with a nuetral gray combination....usually a 50/50 combination.  You can do this with Blue and Orange or Yellow and Purple.  The yellow/purple combo is one of my favorites.  I use Dixoazine Purple and Yellow Ochre.  NICE!!!!!  These grays are not your usual cold gray colors, but very warm and earthy grays.