Medieval Forest vs Cobalt Green

How close are they?

ΔE 14.8, fair: the same colour family, but not a straight swap. Cobalt Green is noticeably darker, warmer than Medieval Forest.

Can I use Cobalt Green instead of Medieval Forest?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Cobalt Green is noticeably darker, warmer than Medieval Forest.

Can I use Medieval Forest instead of Cobalt Green?

The same difference applies the other way round: Medieval Forest is noticeably lighter, 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.