Moot Green vs Light Green (Yellow Shade)

How close are they?

ΔE 20.7, loose: different enough that you should pick on purpose. Light Green (Yellow Shade) is noticeably lighter, more saturated than Moot Green.

Can I use Light Green (Yellow Shade) instead of Moot Green?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 21). Light Green (Yellow Shade) is noticeably lighter, more saturated than Moot Green.

Can I use Moot Green instead of Light Green (Yellow Shade)?

The same difference applies the other way round: Moot Green is noticeably darker, more muted.

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.