ΔE 13.3, fair: the same colour family, but not a straight swap. Sun Yellow is more muted than C.P. Cadmium Orange.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Sun Yellow is more muted than C.P. Cadmium Orange.
The same difference applies the other way round: C.P. Cadmium Orange 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 C.P. Cadmium Orange on the colour wheel See Sun Yellow on the colour wheel
All matches: C.P. Cadmium Orange equivalents · Sun Yellow equivalents