Gemstone vs Evil Forest

How close are they?

ΔE 14.3, fair: the same colour family, but not a straight swap. Evil Forest is noticeably darker, more muted than Gemstone.

Can I use Evil Forest instead of Gemstone?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Evil Forest is noticeably darker, more muted than Gemstone.

Can I use Gemstone instead of Evil Forest?

The same difference applies the other way round: Gemstone is noticeably 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.