ΔE 9.8, close: similar, with a visible difference side by side. Stegadon Scale Green is a little lighter, cooler than Scaly Green.
Usually, if you are not matching paint already on the model. Close match (ΔE 10). Stegadon Scale Green is a little lighter, cooler than Scaly Green.
The same difference applies the other way round: Scaly Green is a little darker, 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.
See Scaly Green on the colour wheel See Stegadon Scale Green on the colour wheel
All matches: Scaly Green equivalents · Stegadon Scale Green equivalents