ΔE 18.6, loose: different enough that you should pick on purpose. Sunset Orange is noticeably lighter, warmer than Orange.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 19). Sunset Orange is noticeably lighter, warmer than Orange.
The same difference applies the other way round: Orange is noticeably 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 Orange on the colour wheel See Sunset Orange on the colour wheel
All matches: Orange equivalents · Sunset Orange equivalents