ΔE 14.8, fair: the same colour family, but not a straight swap. Golden Brown is noticeably darker than Radiation Glow.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Golden Brown is noticeably darker than Radiation Glow.
The same difference applies the other way round: Radiation Glow is noticeably lighter.
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 Radiation Glow on the colour wheel See Golden Brown on the colour wheel
All matches: Radiation Glow equivalents · Golden Brown equivalents