ΔE 5.7, very close: most people won’t see a difference side by side. Transparent Blue is a little darker than Calth Blue Clear. They are different kinds of paint: Citadel Calth Blue Clear is an opaque base/layer paint and Pro Acryl Transparent Blue is an ink, glaze or transparent paint, so they won’t behave the same on the model even where the colour is close.
Yes, for most jobs. Very close match (ΔE 6). Transparent Blue is a little darker than Calth Blue Clear. They are different kinds of paint.
The same difference applies the other way round: Calth Blue Clear is a little lighter.
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.
See Calth Blue Clear on the colour wheel See Transparent Blue on the colour wheel
All matches: Calth Blue Clear equivalents · Transparent Blue equivalents