ΔE 10.0, close: similar, with a visible difference side by side. C.P. Cadmium Yellow Medium is a little lighter than Sunpetal.
Usually, if you are not matching paint already on the model. Close match (ΔE 10). C.P. Cadmium Yellow Medium is a little lighter than Sunpetal.
The same difference applies the other way round: Sunpetal is a little darker.
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 Sunpetal on the colour wheel See C.P. Cadmium Yellow Medium on the colour wheel
All matches: Sunpetal equivalents · C.P. Cadmium Yellow Medium equivalents