ΔE 47.4, loose: different enough that you should pick on purpose. Ancient Sepia is a little lighter, much more muted, cooler than Fuegan Orange.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 47). Ancient Sepia is a little lighter, much more muted, cooler than Fuegan Orange.
The same difference applies the other way round: Fuegan Orange is a little darker, much 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 Fuegan Orange on the colour wheel See Ancient Sepia on the colour wheel
All matches: Fuegan Orange equivalents · Ancient Sepia equivalents