Weed Green vs Green Sky

How close are they?

ΔE 8.4, close: similar, with a visible difference side by side. Green Sky is more muted than Weed Green.

Can I use Green Sky instead of Weed Green?

Usually, if you are not matching paint already on the model. Close match (ΔE 8). Green Sky is more muted than Weed Green.

Can I use Weed Green instead of Green Sky?

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