Ember Orange vs Sunny Skin Tone

How close are they?

ΔE 8.3, close: similar, with a visible difference side by side. Sunny Skin Tone is a little lighter, more muted than Ember Orange.

Can I use Sunny Skin Tone instead of Ember Orange?

Usually, if you are not matching paint already on the model. Close match (ΔE 8). Sunny Skin Tone is a little lighter, more muted than Ember Orange.

Can I use Ember Orange instead of Sunny Skin Tone?

The same difference applies the other way round: Ember Orange is a little darker, 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.