XF-54 Dark Sea Grey is part of Tamiya's XF range of flat acrylic mini paints, matching the Dark Sea Grey used by the RAF on upper surfaces of maritime patrol and strike aircraft. Darker than Medium Sea Grey (XF-83), Dark Sea Grey was applied to the upper surfaces of Sunderlands, Halifaxes in Coastal Command service, and other maritime patrol types in the WWII and post-war eras.