Matching this colour has been a complete nightmare for me over the past 6 months. I've had a centre console sprayed 4 times with apparently the correct code/s and each time it's not matched the dash strip being either too light or too dark.
Recently I had a wing mirror cup analysed/matched by a paint company and the colour code the computer matched it with was Fiat 551, it's a very close match but still slightly lighter in colour, so what I'm doing for Pondman is having a new set completely resprayed so there's no mismatch inside the cabin, he doesn't know yet