ΔE 13.6, fair: the same colour family, but not a straight swap. Interior Grey Green is a little lighter, more saturated, warmer than Pale Lichen.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Interior Grey Green is a little lighter, more saturated, warmer than Pale Lichen.
The same difference applies the other way round: Pale Lichen 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 Pale Lichen on the colour wheel See Interior Grey Green on the colour wheel
All matches: Pale Lichen equivalents · Interior Grey Green equivalents