ΔE 12.9, fair: the same colour family, but not a straight swap. Spectral Wolf is a little darker than Ashen Stone.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Spectral Wolf is a little darker than Ashen Stone.
The same difference applies the other way round: Ashen Stone 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 Ashen Stone on the colour wheel See Spectral Wolf on the colour wheel
All matches: Ashen Stone equivalents · Spectral Wolf equivalents