It’s not that simple unfortunately.
Are you able to visit the place doing the spray painting? If they are good they should have samples for you to look at, ideally curved pieces. The alternative is a RAL fan deck.
All monitors are different so it’s not possible to look at an image and say what the RAL colour is. The RAL fan deck is also pretty limited and doesn’t cover every possible colour. There’s a good chance that Ford use something they’ve formulated themselves and doesn’t fit RAL.
The examples you give look to be pearlescent as well which affects how things appear in different light.