ΔE 18.1, loose: different enough that you should pick on purpose. Arcane Gold is noticeably darker, more muted, cooler than Viking Gold.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 18). Arcane Gold is noticeably darker, more muted, cooler than Viking Gold.
The same difference applies the other way round: Viking Gold is noticeably lighter, 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 Viking Gold on the colour wheel See Arcane Gold on the colour wheel
All matches: Viking Gold equivalents · Arcane Gold equivalents