ΔE 4.0, very close: most people won’t see a difference side by side. Company Grey is a little darker than Matt Light Grey. They are different kinds of paint: AMMO by Mig Matt Light Grey is an ink, glaze or transparent paint and Army Painter Company Grey 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 4). Company Grey is a little darker than Matt Light Grey. They are different kinds of paint.
The same difference applies the other way round: Matt Light Grey 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 Matt Light Grey on the colour wheel See Company Grey on the colour wheel
All matches: Matt Light Grey equivalents · Company Grey equivalents