Eh, not really so much a color preference. I couldn't really find one when trying this myself xD, it'd be better if I had an emblem or something you could work with, I think I do, but its just a rough sketch.
Dari and Garforge by GrandoiseCanti on deviantART
One I drew for on my character's appearance.
Bonding by GrandoiseCanti on deviantART
this is the actual itself.