A-19f Grass Green vs Death World Forest

How close are they?

ΔE 9.7, close: similar, with a visible difference side by side. Death World Forest is a little darker, more saturated, cooler than A-19f Grass Green.

Can I use Death World Forest instead of A-19f Grass Green?

Usually, if you are not matching paint already on the model. Close match (ΔE 10). Death World Forest is a little darker, more saturated, cooler than A-19f Grass Green.

Can I use A-19f Grass Green instead of Death World Forest?

The same difference applies the other way round: A-19f Grass Green is a little lighter, more muted, 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.