ΔE 5.4, very close: most people won’t see a difference side by side. Earth Green is a little darker than Stirland Mud. They are different kinds of paint: Citadel Stirland Mud is a technical paint or medium and Scale75 Earth Green is an opaque base/layer paint, so they won’t behave the same on the model even where the colour is close.
Yes, for most jobs. Very close match (ΔE 5). Earth Green is a little darker than Stirland Mud. They are different kinds of paint.
The same difference applies the other way round: Stirland Mud 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 Stirland Mud on the colour wheel See Earth Green on the colour wheel
All matches: Stirland Mud equivalents · Earth Green equivalents