ΔE 6.7, close: similar, with a visible difference side by side. Briar Queen Chill is more saturated than Ashen Stone.
Usually, if you are not matching paint already on the model. Close match (ΔE 7). Briar Queen Chill is more saturated than Ashen Stone.
The same difference applies the other way round: Ashen Stone is more muted.
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 Ashen Stone on the colour wheel See Briar Queen Chill on the colour wheel
All matches: Ashen Stone equivalents · Briar Queen Chill equivalents