ΔE 12.5, fair: the same colour family, but not a straight swap. Neutral Gray is noticeably darker, more saturated than Administratum Grey.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Neutral Gray is noticeably darker, more saturated than Administratum Grey.
The same difference applies the other way round: Administratum Grey is noticeably lighter, more muted.
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 Administratum Grey on the colour wheel See Neutral Gray on the colour wheel
All matches: Administratum Grey equivalents · Neutral Gray equivalents