ΔE 6.2, close: similar, with a visible difference side by side. Light Aircraft Gray BS381C 627 is a little lighter, more saturated than Typhon Ash.
Usually, if you are not matching paint already on the model. Close match (ΔE 6). Light Aircraft Gray BS381C 627 is a little lighter, more saturated than Typhon Ash.
The same difference applies the other way round: Typhon Ash is a little darker, 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 Typhon Ash on the colour wheel See Light Aircraft Gray BS381C 627 on the colour wheel
All matches: Typhon Ash equivalents · Light Aircraft Gray BS381C 627 equivalents