Dark Olive Drab 41 vs Steel Legion Drab

How close are they?

ΔE 6.5, close: similar, with a visible difference side by side. Steel Legion Drab is warmer than Dark Olive Drab 41.

Can I use Steel Legion Drab instead of Dark Olive Drab 41?

Usually, if you are not matching paint already on the model. Close match (ΔE 7). Steel Legion Drab is warmer than Dark Olive Drab 41.

Can I use Dark Olive Drab 41 instead of Steel Legion Drab?

The same difference applies the other way round: Dark Olive Drab 41 is cooler.

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.