ΔE 24.4, loose: different enough that you should pick on purpose. Orange You Glad is noticeably lighter, much more saturated than Gehenna's Gold.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 24). Orange You Glad is noticeably lighter, much more saturated than Gehenna's Gold.
The same difference applies the other way round: Gehenna's Gold is noticeably darker, much more muted.
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 Gehenna's Gold on the colour wheel See Orange You Glad on the colour wheel
All matches: Gehenna's Gold equivalents · Orange You Glad equivalents