ΔE 10.9, fair: the same colour family, but not a straight swap. Moonstone Grey is a little darker, more muted than Yeti White.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Moonstone Grey is a little darker, more muted than Yeti White.
The same difference applies the other way round: Yeti White 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 Yeti White on the colour wheel See Moonstone Grey on the colour wheel
All matches: Yeti White equivalents · Moonstone Grey equivalents