ΔE 5.3, very close: most people won’t see a difference side by side. Green Sky is a little lighter, cooler than Light Brown.
Yes, for most jobs. Very close match (ΔE 5). Green Sky is a little lighter, cooler than Light Brown.
The same difference applies the other way round: Light Brown is a little darker, 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 Light Brown on the colour wheel See Green Sky on the colour wheel
All matches: Light Brown equivalents · Green Sky equivalents