ΔE 11.4, fair: the same colour family, but not a straight swap. AMT-12 Dark Grey is a little darker than Fade to Black.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). AMT-12 Dark Grey is a little darker than Fade to Black.
The same difference applies the other way round: Fade to Black is a little lighter.
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 Fade to Black on the colour wheel See AMT-12 Dark Grey on the colour wheel
All matches: Fade to Black equivalents · AMT-12 Dark Grey equivalents