ΔE 6.1, close: similar, with a visible difference side by side. Dataslate Grey is a little lighter than Brigandine Brown.
Usually, if you are not matching paint already on the model. Close match (ΔE 6). Dataslate Grey is a little lighter than Brigandine Brown.
The same difference applies the other way round: Brigandine Brown 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 Brigandine Brown on the colour wheel See Dataslate Grey on the colour wheel
All matches: Brigandine Brown equivalents · Dataslate Grey equivalents