ΔE 13.0, fair: the same colour family, but not a straight swap. Aged Pewter is noticeably darker, more saturated than Necron Compound.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Aged Pewter is noticeably darker, more saturated than Necron Compound.
The same difference applies the other way round: Necron Compound 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 Necron Compound on the colour wheel See Aged Pewter on the colour wheel
All matches: Necron Compound equivalents · Aged Pewter equivalents