ΔE 15.7, loose: different enough that you should pick on purpose. Light Yellow is more muted, cooler than Intense Yellow.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Light Yellow is more muted, cooler than Intense Yellow.
The same difference applies the other way round: Intense Yellow is 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 Intense Yellow on the colour wheel See Light Yellow on the colour wheel
All matches: Intense Yellow equivalents · Light Yellow equivalents