ΔE 22.4, loose: different enough that you should pick on purpose. Sunrise Blue is a little darker, cooler than Light Phthalo Green.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 22). Sunrise Blue is a little darker, cooler than Light Phthalo Green.
The same difference applies the other way round: Light Phthalo Green is a little lighter, 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 Light Phthalo Green on the colour wheel See Sunrise Blue on the colour wheel
All matches: Light Phthalo Green equivalents · Sunrise Blue equivalents