ΔE 10.4, fair: the same colour family, but not a straight swap. Dark Gunmetal is more muted than Golden Moon.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 10). Dark Gunmetal is more muted than Golden Moon.
The same difference applies the other way round: Golden Moon is 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.
See Golden Moon on the colour wheel See Dark Gunmetal on the colour wheel
All matches: Golden Moon equivalents · Dark Gunmetal equivalents