ΔE 19.9, loose: different enough that you should pick on purpose. Bile Green is a little lighter, more saturated, cooler than Sunny Yellow.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 20). Bile Green is a little lighter, more saturated, cooler than Sunny Yellow.
The same difference applies the other way round: Sunny Yellow is a little darker, more muted, 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 Sunny Yellow on the colour wheel See Bile Green on the colour wheel
All matches: Sunny Yellow equivalents · Bile Green equivalents