Light Orange vs White Flesh

How close are they?

ΔE 15.3, loose: different enough that you should pick on purpose. White Flesh is a little lighter, much more muted than Light Orange.

Can I use White Flesh instead of Light Orange?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 15). White Flesh is a little lighter, much more muted than Light Orange.

Can I use Light Orange instead of White Flesh?

The same difference applies the other way round: Light Orange is a little darker, much more saturated.

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.