ΔE 14.8, fair: the same colour family, but not a straight swap. Zinc White is a little lighter, much more muted than Doomfire Drab.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Zinc White is a little lighter, much more muted than Doomfire Drab.
The same difference applies the other way round: Doomfire Drab is a little darker, much 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 Doomfire Drab on the colour wheel See Zinc White on the colour wheel
All matches: Doomfire Drab equivalents · Zinc White equivalents