ΔE 11.9, fair: the same colour family, but not a straight swap. Warm Grey is more muted, cooler than Rosy Highlight.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Warm Grey is more muted, cooler than Rosy Highlight.
The same difference applies the other way round: Rosy Highlight is more saturated, warmer.
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 Rosy Highlight on the colour wheel See Warm Grey on the colour wheel
All matches: Rosy Highlight equivalents · Warm Grey equivalents