Light Green Uniform vs Death World Forest

How close are they?

ΔE 8.5, close: similar, with a visible difference side by side. Death World Forest is more saturated, cooler than Light Green Uniform.

Can I use Death World Forest instead of Light Green Uniform?

Usually, if you are not matching paint already on the model. Close match (ΔE 8). Death World Forest is more saturated, cooler than Light Green Uniform.

Can I use Light Green Uniform instead of Death World Forest?

The same difference applies the other way round: Light Green Uniform is 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.