ΔE 19.6, loose: different enough that you should pick on purpose. Sand Grey is a little lighter, more saturated than Yeti White.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 20). Sand Grey is a little lighter, more saturated than Yeti White.
The same difference applies the other way round: Yeti White is a little darker, more muted.
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 Sand Grey on the colour wheel
All matches: Yeti White equivalents · Sand Grey equivalents