Teclis Blue vs Fluor Blue

How close are they?

ΔE 9.6, close: similar, with a visible difference side by side. Fluor Blue is a little lighter, more muted, warmer than Teclis Blue. They are different kinds of paint: Citadel Teclis Blue is an opaque base/layer paint and Green Stuff World Fluor Blue 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 Fluor Blue instead of Teclis Blue?

Usually, if you are not matching paint already on the model. Close match (ΔE 10). Fluor Blue is a little lighter, more muted, warmer than Teclis Blue. They are different kinds of paint.

Can I use Teclis Blue instead of Fluor Blue?

The same difference applies the other way round: Teclis Blue is a little darker, 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.