Forest Sprite vs Mantis Warriors Green

How close are they?

ΔE 9.5, close: similar, with a visible difference side by side. Mantis Warriors Green is a little darker than Forest Sprite.

Can I use Mantis Warriors Green instead of Forest Sprite?

Usually, if you are not matching paint already on the model. Close match (ΔE 9). Mantis Warriors Green is a little darker than Forest Sprite.

Can I use Forest Sprite instead of Mantis Warriors Green?

The same difference applies the other way round: Forest Sprite is a little lighter.

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.