ΔE 14.9, fair: the same colour family, but not a straight swap. Lemon Yellow is noticeably darker, more muted than Bismuth Vanadate Yellow.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Lemon Yellow is noticeably darker, more muted than Bismuth Vanadate Yellow.
The same difference applies the other way round: Bismuth Vanadate 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 Bismuth Vanadate Yellow on the colour wheel See Lemon Yellow on the colour wheel
All matches: Bismuth Vanadate Yellow equivalents · Lemon Yellow equivalents