Heartfire vs Sunny Skin Tone

How close are they?

ΔE 19.4, loose: different enough that you should pick on purpose. Sunny Skin Tone is a little darker, more muted, warmer than Heartfire.

Can I use Sunny Skin Tone instead of Heartfire?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 19). Sunny Skin Tone is a little darker, more muted, warmer than Heartfire.

Can I use Heartfire instead of Sunny Skin Tone?

The same difference applies the other way round: Heartfire is a little lighter, 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.