ΔE 5.8, very close: most people won’t see a difference side by side. C.P. Cadmium Yellow Dark 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 C.P. Cadmium Yellow Dark is an opaque base/layer paint, so they won’t behave the same on the model even where the colour is close.
Yes, for most jobs. Very close match (ΔE 6). C.P. Cadmium Yellow Dark 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 C.P. Cadmium Yellow Dark on the colour wheel
All matches: Maize Yellow equivalents · C.P. Cadmium Yellow Dark equivalents