Greenskin vs Muddy Olive

How close are they?

ΔE 17.2, loose: different enough that you should pick on purpose. Muddy Olive is much more muted, warmer than Greenskin.

Can I use Muddy Olive instead of Greenskin?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 17). Muddy Olive is much more muted, warmer than Greenskin.

Can I use Greenskin instead of Muddy Olive?

The same difference applies the other way round: Greenskin is much 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.