A little back story
During most of WWII, the US Navy's paints were based on a purple/blue system. The colors were based on the 1929 Munsell color notation system. These paints were also not part of the wartime ANA color specication.
In early 1945 the paints went to a neutral scheme. This was due to wartime shortages of blue pigments.
The Fed-Std-595 color specification system is a product of the 1950s. The WWII purple/blue paints were cconsidered obsolete. The failed to make the cut into the new standard system
There is no direct 1:1 correlation between the US Navy's purple/blue paints and the modern Fed-Std-595. What there are is one-or-more people's opinions as to what FS color may be closest to the desired color. And if you put six modelers in a room discussing colors you get 12 different opinions.
John Snyder and Randy Short developed a set of color paint chips based on a copy of the original 1929 Munsell standard. See shipcamoflage.com, Snyder & Shorts website. These paint chips lead to White Ensign Model's Colourcoat line of paints. White Ensign has gone out of business and the paints are currently unavailable. (However the rights to produce these paints has been sold and they will once again see the light of day).
According to their press-release at the time, the original Testor's Acrylic marine line of paints was based on the Snyder and Short paint chips. Testor's really didn't support these paints well to the hobby shops, requiring the shops to buy additional racking to sell them and fantasy colors. These paints didn't sell well and were discontinued.
With the rise in the quality and number of ship kits there was a re-interest in naval ship colors. Testor's also saw that WEM's enamel Colourcoats had a following. Within the last year they re-released some of the former Marine Acrylics in enamels. Smarter this time, they worked them into the existing enamel sales racking system so that the hobby shop owner didn't need to buy a new one.
Go to shipcamouflage.com. Read Allen Raven's excellent monograph on the development of naval camouflage for a good grounding. Review the SHIPS-2 camouflage instructions. Check the database of known camouflage measures applied to US Navy ships.