In short, I want to know what the theory is behind the Helpscout colour palette. I think it has something to do with material.io?
https://style.helpscout.com/visual-elements/
Now I've always had my own way of generating shades of brand colours (which works pretty damn well!) but I thought I'd try to move to something more conventional which would help the design team (and devs) generate palettes for themselves easily and extend palettes.
So I post as I can't figure out what the pattern is here after playing around for a bit. I feel like I'm missing something very obvious and being a bit of a noob ...or maybe just snow-blind working late.
So what's the math behind this? Thanks in advance!