I think there's a colour from Audi that matches pretty good. I don't remember the name though, but I got it from a standard Audi S4. You could try and filter your chips by make and see if you got anything similar there.
Edit: In fact, you can filter all your chips by hue and scroll down to the blues to see if you already got something that's similar.
Oh, and Tuxedo black that you get from the premium Corvette is actually a very dark blue. A lot darker than the picture though.