Maker API with RGB secondary command

Hmmm, I seem to not be using Postman correctly to post this json. I'll keep looking through the maker api documentation, but I don't see any example of sending this. I do see this example of sending multiple secondary commands to a setCode:

But is there some way to do that for HSL also? I tried just putting "setColor/3,99,50" but that fails.

My postman fails with this repsonse: