ΔE 20.6, loose: different enough that you should pick on purpose. Yellow Submarine is a little darker, much more muted, cooler than Zealot Yellow.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 21). Yellow Submarine is a little darker, much more muted, cooler than Zealot Yellow.
The same difference applies the other way round: Zealot Yellow is a little lighter, much more saturated, 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 Zealot Yellow on the colour wheel See Yellow Submarine on the colour wheel
All matches: Zealot Yellow equivalents · Yellow Submarine equivalents