A sample is in Snyder-Short USN WW2 Ship Colors Set 2 as "#17 Ocean Gray," Colourcoats US31 #17 Neutral Ocean Gray (1945) matches US31. A reasonable match in the Pantone Matching System maps to 20% reflective. E-mail me if you'd like details.
Be aware that in Snyder-Short USN WW2 Ship Colors Set 2 the chip next to #17 Ocean Gray is misidentified as "#27 Haze Gray 5-H" but is actually USN postwar haze gray. Colourcoats US28 #27 Neutral Haze Gray measures as accurate to its description.
http://www.cv6.org/1945/1945.htm describes that USS Enterprise called at New York in October 1945 for the Navy Day events.
Thanks for posting this video.