ΔE 24.3, loose: different enough that you should pick on purpose. Cloudy Sky is noticeably lighter, more muted than Baneblade Brown.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 24). Cloudy Sky is noticeably lighter, more muted than Baneblade Brown.
The same difference applies the other way round: Baneblade Brown is noticeably darker, 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 Baneblade Brown on the colour wheel See Cloudy Sky on the colour wheel
All matches: Baneblade Brown equivalents · Cloudy Sky equivalents