ΔE 10.6, fair: the same colour family, but not a straight swap. Benzimidazolone Yellow Medium is more muted than Maize Yellow. They are different kinds of paint: Army Painter Maize Yellow is a one-coat contrast-style paint and Golden Benzimidazolone Yellow Medium is an ink, glaze or transparent paint, so they won’t behave the same on the model even where the colour is close.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Benzimidazolone Yellow Medium is more muted than Maize Yellow. They are different kinds of paint.
The same difference applies the other way round: Maize Yellow is 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 Maize Yellow on the colour wheel See Benzimidazolone Yellow Medium on the colour wheel
All matches: Maize Yellow equivalents · Benzimidazolone Yellow Medium equivalents