I have just mixed my own paint, as i am doing a su27 in the eggplant scheme, i used 50% german grey, 20% pure red, 20% flat blue, and 10% black.
Cane out an absolute treat really dark grey with a hint of purple. It really looks mean and menacing on a 32nd scale flanker, i know not strictly correct, but a what if scheme, as the eggplant schemes were on the SU30, SU33, SU34 and SU25's.