ΔE 14.2, fair: the same colour family, but not a straight swap. Warm Grey is a little darker, more muted, warmer than Gum Pink.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Warm Grey is a little darker, more muted, warmer than Gum Pink.
The same difference applies the other way round: Gum Pink is a little lighter, more saturated, 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 Gum Pink on the colour wheel See Warm Grey on the colour wheel
All matches: Gum Pink equivalents · Warm Grey equivalents