Fey Pink vs Hot Pink

How close are they?

ΔE 8.2, close: similar, with a visible difference side by side. Hot Pink is more saturated, warmer than Fey Pink.

Can I use Hot Pink instead of Fey Pink?

Usually, if you are not matching paint already on the model. Close match (ΔE 8). Hot Pink is more saturated, warmer than Fey Pink.

Can I use Fey Pink instead of Hot Pink?

The same difference applies the other way round: Fey Pink is more muted, 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.