https://www.soapmakingfriend.com/forum/forums/general-soapmaking-forum.5/

[patcroz]

I would like to make some green Christmas soaps and would like them to be as natural as possible. I have wheatgrass and also moringa powder, would either of them make a nice green?
Also interested in red for a natural colour.
Thank you.

 

[comfortandjoy]

Wheatgrass makes a decent green. I would infuse it in olive oil first. I would add it dry to the batter if I wanted more green. I think madder root makes a decent red.