Flesh Tearers Red vs Fluorescent Red

How close are they?

ΔE 16.2, loose: different enough that you should pick on purpose. Fluorescent Red is noticeably lighter than Flesh Tearers Red. They are different kinds of paint: Citadel Flesh Tearers Red is a one-coat contrast-style paint and Golden Fluorescent Red is a fluorescent or effect paint, so they won’t behave the same on the model even where the colour is close.

Can I use Fluorescent Red instead of Flesh Tearers Red?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Fluorescent Red is noticeably lighter than Flesh Tearers Red. They are different kinds of paint.

Can I use Flesh Tearers Red instead of Fluorescent Red?

The same difference applies the other way round: Flesh Tearers Red is noticeably darker.

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.