Teclis Blue vs Fluorescent Blue

How close are they?

ΔE 14.4, fair: the same colour family, but not a straight swap. Fluorescent Blue is a little lighter, more saturated than Teclis Blue. They are different kinds of paint: Citadel Teclis Blue is an opaque base/layer paint and Golden Fluorescent 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 Fluorescent Blue instead of Teclis Blue?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Fluorescent Blue is a little lighter, more saturated than Teclis Blue. They are different kinds of paint.

Can I use Teclis Blue instead of Fluorescent Blue?

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

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.