color picking some of the colors, you can see that the 'yellow' is actually a muddy gray, the 'white' is a lighter shade of that subjective neutral color, and the 'reds' are purplish.
so to get a 'mood', all you need to do is point a triangle at the color you want and use that as your gamut. since the gamut avoids the center, the subjective neutral isn't just grey anymore, it becomes green or red or blue or whatever you like.
