I did figure that out today and got some from a local supplier. Got them to look up the fiat codePaints are made by PPG.
Here the italian PPG depliant for Renegade colors, same are the same of 500X and 500L.
For example Renegade's "Mojave sand" is the same as Fiat 500L "Beige Cappuccino Pastello". Their code is PPG 231/B.
"Omaha orange" is Fiat 500X "Arancio Spritz Pastello", code PPG 562/B.
Some colors were already used on other cars.
All colors use water as solvent, in European Union car manufacturers cannot use classical "solvent" paints.