ΔE 7.9, close: similar, with a visible difference side by side. Uniform Green is a little darker than Ardennes Green.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Uniform Green is a little darker than Ardennes Green.
The same difference applies the other way round: Ardennes 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 Ardennes Green on the colour wheel See Uniform Green on the colour wheel
All matches: Ardennes Green equivalents · Uniform Green equivalents