ΔE 6.7, close: similar, with a visible difference side by side. Pale Blue is a little lighter, warmer than Gunship Gray 2.
Usually, if you are not matching paint already on the model. Close match (ΔE 7). Pale Blue is a little lighter, warmer than Gunship Gray 2.
The same difference applies the other way round: Gunship Gray 2 is a little darker, cooler.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Gunship Gray 2 on the colour wheel See Pale Blue on the colour wheel
All matches: Gunship Gray 2 equivalents · Pale Blue equivalents