ΔE 10.5, fair: the same colour family, but not a straight swap. Moon Mist Grey is a little darker, more muted than Hobgoblin Hue.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 10). Moon Mist Grey is a little darker, more muted than Hobgoblin Hue.
The same difference applies the other way round: Hobgoblin Hue is a little lighter, more saturated.
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 Hobgoblin Hue on the colour wheel See Moon Mist Grey on the colour wheel
All matches: Hobgoblin Hue equivalents · Moon Mist Grey equivalents