ΔE 13.6, fair: the same colour family, but not a straight swap. Amber Green is more saturated, cooler than Aged Metal.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Amber Green is more saturated, cooler than Aged Metal.
The same difference applies the other way round: Aged Metal is more muted, warmer.
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 Aged Metal on the colour wheel See Amber Green on the colour wheel
All matches: Aged Metal equivalents · Amber Green equivalents