ΔE 11.5, fair: the same colour family, but not a straight swap. Ocean Gray 2 (RAF) is more muted, cooler than Russ Grey.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Ocean Gray 2 (RAF) is more muted, cooler than Russ Grey.
The same difference applies the other way round: Russ Grey is more saturated, warmer.
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 Russ Grey on the colour wheel See Ocean Gray 2 (RAF) on the colour wheel
All matches: Russ Grey equivalents · Ocean Gray 2 (RAF) equivalents