Dark Feldgrau vs Dark Reaper

How close are they?

ΔE 11.7, fair: the same colour family, but not a straight swap. Dark Reaper is a little lighter, cooler than Dark Feldgrau.

Can I use Dark Reaper instead of Dark Feldgrau?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Dark Reaper is a little lighter, cooler than Dark Feldgrau.

Can I use Dark Feldgrau instead of Dark Reaper?

The same difference applies the other way round: Dark Feldgrau is a little darker, warmer.

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.