ΔE 13.1, fair: the same colour family, but not a straight swap. RLM 79 Sand Yellow is noticeably darker than Gnome Cheeks.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). RLM 79 Sand Yellow is noticeably darker than Gnome Cheeks.
The same difference applies the other way round: Gnome Cheeks 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 Gnome Cheeks on the colour wheel See RLM 79 Sand Yellow on the colour wheel
All matches: Gnome Cheeks equivalents · RLM 79 Sand Yellow equivalents