Sons of Horus Green vs Fallen Grass

How close are they?

ΔE 16.2, loose: different enough that you should pick on purpose. Fallen Grass is a little lighter, more muted, warmer than Sons of Horus Green.

Can I use Fallen Grass instead of Sons of Horus Green?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Fallen Grass is a little lighter, more muted, warmer than Sons of Horus Green.

Can I use Sons of Horus Green instead of Fallen Grass?

The same difference applies the other way round: Sons of Horus Green 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.