There is no correct FS reference.
The colors used by the US Navy during WWII were based on the 1929 version of the Munsell Color system. They are based on a purple/blue system. Late in the war the colors used went to a neutral gray system. The Fed-Std color reference system was created by the DoD in the 1950s. Since the Navy's purple/blue colors were considered to be obsolete they 'failed to make the cut' for inclusion into the new standard.
The next question you must ask yourself is what ship and what time period am I modeling? Landing craft were painted in accordance with the color of their mothership - at their assigned davit location. That means, if the mother was dazzled (Ms 3x) the landing craft will display dazzle patches which match the mother's. Also, because the boats were hauled out of the water where the barnacles & beasties live, there was no need to paint their bottoms with antifouling (red, copper, or black) paint.
Also the camouflage measures changed as the war progressed. You may see haze gray, dazzled, or navy blue. All would be correct.
See the shipcamouflage website for a through discussion of the topic. Pay special attention o the article by Alan Raven on the development of naval camouflage.
http://shipcamouflage.com/
There are no correct MM colors which represent the Navy's colors used during WWII. Testors used to make some acrylic paints which were matched to the Snyder & Short color ships. But they are now OOP. You may be able to order direct from Testors. The best match for the colors (IMO) is the Colourcoat line of paints from White Ensign Models
http://www.whiteensignmodels.com/
I have the Trump kit somewhere deep in the stash. The Dragon kit is near the top. It's box art is too light to be Ms 21, not purple enough to be Ms 22 (Haze over Navy), not dazzled for Ms 3x, and too light for Ms 14 (Ocean Gray)