I've talked about this color before and how I don't own a tube of black. I post this not so good w/c painting because of the black hat.. A mixture of UB (untramarine blue) SG (sap green) and AZ (alizaron crimson) in different amounts will give you a warm black , more red , a cold black... more blue .
So it reads as black even though I never used it. TA DA!!!!