ΔE 10.0, close: similar, with a visible difference side by side. Radiation Glow is a little lighter, more saturated than Golden Sand.
Usually, if you are not matching paint already on the model. Close match (ΔE 10). Radiation Glow is a little lighter, more saturated than Golden Sand.
The same difference applies the other way round: Golden Sand is a little darker, 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 Golden Sand on the colour wheel See Radiation Glow on the colour wheel
All matches: Golden Sand equivalents · Radiation Glow equivalents