Still working on this fun project, here's what I found:
Purple cough
Amethyst bud
Blueberry ? (I thought it was green!)
Homegrown Purple
Kilimanjaro
Lavender
Somango/soma#5
Twilight
Hawaiian Okole

Anyone who has grown one of these, or another with SOLID dark foliage, or one of Tommygirl's other recommendations, input is appreciated.