Aggressor Blue FS 35109 vs Stegadon Scale Green

How close are they?

ΔE 7.7, close: similar, with a visible difference side by side. Stegadon Scale Green is more saturated, warmer than Aggressor Blue FS 35109.

Can I use Stegadon Scale Green instead of Aggressor Blue FS 35109?

Usually, if you are not matching paint already on the model. Close match (ΔE 8). Stegadon Scale Green is more saturated, warmer than Aggressor Blue FS 35109.

Can I use Aggressor Blue FS 35109 instead of Stegadon Scale Green?

The same difference applies the other way round: Aggressor Blue FS 35109 is 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.