ΔE 20.3, loose: different enough that you should pick on purpose. Light Yellow is a little lighter, warmer than Moss Green.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 20). Light Yellow is a little lighter, warmer than Moss Green.
The same difference applies the other way round: Moss Green is a little darker, cooler.
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 Moss Green on the colour wheel See Light Yellow on the colour wheel
All matches: Moss Green equivalents · Light Yellow equivalents