ΔE 12.7, fair: the same colour family, but not a straight swap. Sand Yellow is noticeably darker, more muted than Vanilla Yellow.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Sand Yellow is noticeably darker, more muted than Vanilla Yellow.
The same difference applies the other way round: Vanilla Yellow is noticeably 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 Vanilla Yellow on the colour wheel See Sand Yellow on the colour wheel
All matches: Vanilla Yellow equivalents · Sand Yellow equivalents