Option for lock up one o more base colors

Hi. First of all I have to say that your project cohesive-colors has great potential, but I find one issue that, at least in my particular case, makes it much less useful, and is the fact that I haven't figure the way of set up a base color, and in situations like branding design or so, this is mandatory, so the implementation of this characteristic could, in my opinion, be a good idea. Regards!