A-18f Light Grey-Blue vs Administratum Grey

How close are they?

ΔE 12.9, fair: the same colour family, but not a straight swap. Administratum Grey is a little darker, more muted than A-18f Light Grey-Blue.

Can I use Administratum Grey instead of A-18f Light Grey-Blue?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Administratum Grey is a little darker, more muted than A-18f Light Grey-Blue.

Can I use A-18f Light Grey-Blue instead of Administratum Grey?

The same difference applies the other way round: A-18f Light Grey-Blue is a little lighter, more saturated.

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.