ΔE 9.8, close: similar, with a visible difference side by side. Dawnstone is a little darker than Dark Gull Grey FS 36231.
Usually, if you are not matching paint already on the model. Close match (ΔE 10). Dawnstone is a little darker than Dark Gull Grey FS 36231.
The same difference applies the other way round: Dark Gull Grey FS 36231 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 Dark Gull Grey FS 36231 on the colour wheel See Dawnstone on the colour wheel
All matches: Dark Gull Grey FS 36231 equivalents · Dawnstone equivalents