ΔE 11.5, fair: the same colour family, but not a straight swap. Death Korps Drab is more muted than Sinai Grey.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Death Korps Drab is more muted than Sinai Grey.
The same difference applies the other way round: Sinai Grey 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 Sinai Grey on the colour wheel See Death Korps Drab on the colour wheel
All matches: Sinai Grey equivalents · Death Korps Drab equivalents