Product Alert: Dark & Lovely Permanent Haircolors

I'm mulling over potential haircolors for when my hair is the length I want. Chestnut Blonde #380 and Sunkissed Brown #377. I want to do a 3-tone in horizontal layers, like I bleached the Rex Kinky Curly. I'll leave the bottom layer natural, the middle layer the lightest, and the top layer the darker color... sort of like layering eyeshadows. Or maybe I'll leave the top dark and natural, the middle layer the lightest, and the bottom layer the darker color. I may let Meghann (my daughter) color it for me, since she's the professional.