Dark Yellow Green vs Fern Green

How close are they?

ΔE 11.1, fair: the same colour family, but not a straight swap. Fern Green is more muted, cooler than Dark Yellow Green.

Can I use Fern Green instead of Dark Yellow Green?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Fern Green is more muted, cooler than Dark Yellow Green.

Can I use Dark Yellow Green instead of Fern Green?

The same difference applies the other way round: Dark Yellow Green is more saturated, warmer.

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.