ΔE 14.0, fair: the same colour family, but not a straight swap. Toxic Yellow is a little darker, more muted than Titanate Yellow.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Toxic Yellow is a little darker, more muted than Titanate Yellow.
The same difference applies the other way round: Titanate Yellow 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 Titanate Yellow on the colour wheel See Toxic Yellow on the colour wheel
All matches: Titanate Yellow equivalents · Toxic Yellow equivalents