Chrome Oxide Green vs Fern Green

How close are they?

ΔE 14.8, fair: the same colour family, but not a straight swap. Fern Green is a little darker, much more muted than Chrome Oxide Green.

Can I use Fern Green instead of Chrome Oxide Green?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Fern Green is a little darker, much more muted than Chrome Oxide Green.

Can I use Chrome Oxide Green instead of Fern Green?

The same difference applies the other way round: Chrome Oxide Green is a little lighter, much 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.