Which blue colours for TBM Avenger?

According to the site below you can use Tamiya AS8 for the navy blue and AS19 for the intermediate blue. Also use insignia white for the bottom surfaces. I hope this helps, good luck on your project!

https://www.cybermodeler.com/aircraft/tbf/tbf_profile01.shtml

AS-8 & AS-19

The colors need to be mixed. Non Specular Sea Blue ANA 607, Non Specular Intermediate Blue ANA 608. Mix formulas, along with many of the other WWII US colors here...

https://replikator.club/2021/02/09/tamiya-paint-database-us-aircraft-colours-wwii/

Thank you both

If you're like me and don't want to mix colors, I think AS8 dark blue and AS19 intermediate blue should be close enough.  The bottom can be AS20 insignia white.