ΔE 12.6, fair: the same colour family, but not a straight swap. Wolf Grey is a little darker, more muted than Iceborn.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Wolf Grey is a little darker, more muted than Iceborn.
The same difference applies the other way round: Iceborn is a little lighter, more saturated.
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 Iceborn on the colour wheel See Wolf Grey on the colour wheel
All matches: Iceborn equivalents · Wolf Grey equivalents