ΔE 8.6, close: similar, with a visible difference side by side. Deep Yellow is cooler than Lemon Yellow.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). Deep Yellow is cooler than Lemon Yellow.
The same difference applies the other way round: Lemon Yellow is warmer.
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 Lemon Yellow on the colour wheel See Deep Yellow on the colour wheel
All matches: Lemon Yellow equivalents · Deep Yellow equivalents