ΔE 10.8, fair: the same colour family, but not a straight swap. Weathered Stone is a little lighter, more muted than Uniform Grey.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Weathered Stone is a little lighter, more muted than Uniform Grey.
The same difference applies the other way round: Uniform Grey is a little darker, more saturated.
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 Uniform Grey on the colour wheel See Weathered Stone on the colour wheel
All matches: Uniform Grey equivalents · Weathered Stone equivalents