Patagon Pine vs Viridian Green Hue

How close are they?

ΔE 15.7, loose: different enough that you should pick on purpose. Viridian Green Hue is a little darker, much more saturated than Patagon Pine.

Can I use Viridian Green Hue instead of Patagon Pine?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Viridian Green Hue is a little darker, much more saturated than Patagon Pine.

Can I use Patagon Pine instead of Viridian Green Hue?

The same difference applies the other way round: Patagon Pine is a little lighter, much 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.