Mortarion Green Clear vs Orc Green

How close are they?

ΔE 13.8, fair: the same colour family, but not a straight swap. Orc Green is a little darker, more muted than Mortarion Green Clear.

Can I use Orc Green instead of Mortarion Green Clear?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Orc Green is a little darker, more muted than Mortarion Green Clear.

Can I use Mortarion Green Clear instead of Orc Green?

The same difference applies the other way round: Mortarion Green Clear is a little lighter, 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.