ΔE 16.8, loose: different enough that you should pick on purpose. Afterglow is a little lighter, more muted, cooler than Interior Yellow Green.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 17). Afterglow is a little lighter, more muted, cooler than Interior Yellow Green.
The same difference applies the other way round: Interior Yellow Green is a little darker, 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 Interior Yellow Green on the colour wheel See Afterglow on the colour wheel
All matches: Interior Yellow Green equivalents · Afterglow equivalents