ΔE 5.2, very close: most people won’t see a difference side by side. Underhive Ash is more saturated, cooler than Gargoyle Grey.
Yes, for most jobs. Very close match (ΔE 5). Underhive Ash is more saturated, cooler than Gargoyle Grey.
The same difference applies the other way round: Gargoyle Grey is more muted, warmer.
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 Gargoyle Grey on the colour wheel See Underhive Ash on the colour wheel
All matches: Gargoyle Grey equivalents · Underhive Ash equivalents