ΔE 6.8, close: similar, with a visible difference side by side. Scurvy Green is a little darker than Antiquity Green.
Usually, if you are not matching paint already on the model. Close match (ΔE 7). Scurvy Green is a little darker than Antiquity Green.
The same difference applies the other way round: Antiquity Green 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.
See Antiquity Green on the colour wheel See Scurvy Green on the colour wheel
All matches: Antiquity Green equivalents · Scurvy Green equivalents