cold processed

Hey guys,first time poster and long time watcher of SMF. I'm making soap for a local boutique hotel. Their logo color is a deep navy blue.I make CP soap and try to use only natural colorants,but I cannot think of any way to make this color.Any advice would be awesome.

I am completely new to soap making but I'm confidant (maybe overly confidant) I can figure this out pretty quickly. I have been researching and formulating ideas, recipes and learning techniques for months and I have finally bit the bullet and purchased my supplies. I am about to make my...