ΔE 11.3, fair: the same colour family, but not a straight swap. Hobgrot Hide is noticeably darker than RLM 79 (1942).
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Hobgrot Hide is noticeably darker than RLM 79 (1942).
The same difference applies the other way round: RLM 79 (1942) 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 RLM 79 (1942) on the colour wheel See Hobgrot Hide on the colour wheel
All matches: RLM 79 (1942) equivalents · Hobgrot Hide equivalents