ΔE 14.7, fair: the same colour family, but not a straight swap. Battle Mud Wash is a little darker, more saturated than Soulblight Grey.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Battle Mud Wash is a little darker, more saturated than Soulblight Grey.
The same difference applies the other way round: Soulblight Grey is a little 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 Soulblight Grey on the colour wheel See Battle Mud Wash on the colour wheel
All matches: Soulblight Grey equivalents · Battle Mud Wash equivalents