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