Just an FYI, there is a paint code on the driver's door, but that code did not match up with any that I saw online when looking for touch up paint. I did ultimately find a good kit on Amazon that was designed to match my Stromboli Gray, but the color code they use is not the same as the one on my door.
Here's a link. Hope it works. These touch up kits (if that's what you are looking for) use the same names to reference the Giulia's colors.
yeah IMO best to check with the dealer / modern paint shop on your color. I ordered a can using the paint code on my Rosso Red and it ended up looking flat. Think it was missing a pearl additive from what others have said.