wax - a beautiful new grey

I just discovered a beautiful new grey. I'm always looking for greys. My theory is if I begin with a color that interests me then search for the one or two colors that will grey it, I'll end up with two or three colors that will include a wide range of combinations and won't go muddy. This combination was rather a surprise - Egyptian violet, ultramarine blue and Indian yellow. There isn't an official red in this group but the violet and the blue are both very warm and must supply enough red - because it greys very nicely. These are all encaustic sticks from R&F Paints.