Role opacity

Idea time:
Roles to tint other roles. Example: Role A is purple. Role B is red. Role C is yellow. People can have all those roles. Role a1 is white, but only has 50% opacity. That way, I can give out role a1 and it will tint the color roles so people can be identified immediately as whatever status a1 gives, without removing the color status of their original role.

More realistic example:
I am making a roleplay server. The color of a person's role defines their species. I want mods and kings/queens to be able to have a different color without loosing their original species color entirely. I know you could just loiok in roles to find it, but I prefer chat color to mean something and for people to not need to do more than look at someone's chat to know exactly what they do or who they represent in the server.