Orc Green vs Undergrowth Green

How close are they?

ΔE 13.4, fair: the same colour family, but not a straight swap. Undergrowth Green is a little lighter, more muted, warmer than Orc Green.

Can I use Undergrowth Green instead of Orc Green?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Undergrowth Green is a little lighter, more muted, warmer than Orc Green.

Can I use Orc Green instead of Undergrowth Green?

The same difference applies the other way round: Orc Green is a little darker, more saturated, 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.