Any advice for color matching Lagoon Blue interior color?

My advice is find a pro paint store with an old time employee. Many times they have access to color charts from back in the day.
Also, get the SEM color chart, they have a lot of choices too.
We used to have a store called Finishmaster here that would custom mix aerosol spray cans, but they must've gone out of business around Covid.....SEM has a surprisingly small choice when it comes to blue, unfortunately. Pacific looks the closest, but way too dark...this snapshot from Legendary is a pretty decent representation of what my door panels look like
1712246626630.png

1712246510174.jpeg