Ardennes Green vs Ochre

How close are they?

ΔE 13.5, fair: the same colour family, but not a straight swap. Ochre is more saturated, warmer than Ardennes Green.

Can I use Ochre instead of Ardennes Green?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Ochre is more saturated, warmer than Ardennes Green.

Can I use Ardennes Green instead of Ochre?

The same difference applies the other way round: Ardennes Green is more muted, 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.