ΔE 19.6, loose: different enough that you should pick on purpose. Scaly Highlight is a little darker, much more muted, cooler than Jade Green.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 20). Scaly Highlight is a little darker, much more muted, cooler than Jade Green.
The same difference applies the other way round: Jade Green is a little lighter, much more saturated, 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 Jade Green on the colour wheel See Scaly Highlight on the colour wheel
All matches: Jade Green equivalents · Scaly Highlight equivalents