Aquatic Turquoise vs Medieval Forest

How close are they?

ΔE 11.4, fair: the same colour family, but not a straight swap. Medieval Forest is a little lighter, more muted, warmer than Aquatic Turquoise.

Can I use Medieval Forest instead of Aquatic Turquoise?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Medieval Forest is a little lighter, more muted, warmer than Aquatic Turquoise.

Can I use Aquatic Turquoise instead of Medieval Forest?

The same difference applies the other way round: Aquatic Turquoise 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.