ΔE 6.6, close: similar, with a visible difference side by side. Militarum Green is a little lighter than Dragon Green. They are different kinds of paint: AMMO by Mig Dragon Green is an opaque base/layer paint and Citadel Militarum Green is a one-coat contrast-style paint, so they won’t behave the same on the model even where the colour is close.
Usually, if you are not matching paint already on the model. Close match (ΔE 7). Militarum Green is a little lighter than Dragon Green. They are different kinds of paint.
The same difference applies the other way round: Dragon Green is a little darker.
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 Dragon Green on the colour wheel See Militarum Green on the colour wheel
All matches: Dragon Green equivalents · Militarum Green equivalents