ΔE 13.0, fair: the same colour family, but not a straight swap. Olive Grey is a little lighter, more saturated than Gravedigger Denim.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Olive Grey is a little lighter, more saturated than Gravedigger Denim.
The same difference applies the other way round: Gravedigger Denim 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 Gravedigger Denim on the colour wheel See Olive Grey on the colour wheel
All matches: Gravedigger Denim equivalents · Olive Grey equivalents