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