ΔE 7.2, close: similar, with a visible difference side by side. Sunpetal is a little lighter, more saturated than Yellow.
Usually, if you are not matching paint already on the model. Close match (ΔE 7). Sunpetal is a little lighter, more saturated than Yellow.
The same difference applies the other way round: Yellow is a little darker, more muted.
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 Yellow on the colour wheel See Sunpetal on the colour wheel
All matches: Yellow equivalents · Sunpetal equivalents