Martin as I mentioned, the only spray can paint that was a match was a Rustoleum parking lot paint! I tried it on some plain plastic and it couldn't be clear coated to create gloss, maybe with Future, but I wanted t stay with lacquer. Krylon and Rustoleum both have a lot of blues, but I couldn't find many of them and an online color picture isn't very accurate.
I don't airbrush, so what I did was paint with dark blue. While it was still wet, I put a light coat of French blue over it. It kind of settled in and gave me a color darker then the French blue. After a few days I clear coated it with Duplicolor clear lacquer. It came out better than I expected.