Bog Moss vs UK Light Stone

How close are they?

ΔE 17.5, loose: different enough that you should pick on purpose. UK Light Stone is a little lighter, more muted, warmer than Bog Moss.

Can I use UK Light Stone instead of Bog Moss?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 17). UK Light Stone is a little lighter, more muted, warmer than Bog Moss.

Can I use Bog Moss instead of UK Light Stone?

The same difference applies the other way round: Bog Moss is a little darker, more saturated, cooler.

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.