Merm Green vs Green Yellow

How close are they?

ΔE 11.0, fair: the same colour family, but not a straight swap. Green Yellow is a little lighter, more saturated, warmer than Merm Green.

Can I use Green Yellow instead of Merm Green?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Green Yellow is a little lighter, more saturated, warmer than Merm Green.

Can I use Merm Green instead of Green Yellow?

The same difference applies the other way round: Merm Green is a little darker, more muted, 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.