Note that I used Scale 75 colors for these models (from their basic line and their Fantasy and Games line). Feel free to swap out comparable colors from other manufacturers.
I started off with a basecoat made from about a 60%/40% mix of Arphen Jade and Joryldin Turquoise (using more of the turquoise).
Here is what the color looks like when mixed together. I put the basecoat on using 2-3 thin coats. You can see what it looks like on the models as well.