ΔE 7.9, close: similar, with a visible difference side by side. Inktense Cyan is a little darker, more saturated, warmer than Thousand Sons Blue. They are different kinds of paint: Citadel Thousand Sons Blue is an opaque base/layer paint and Scale75 Inktense Cyan is an ink, glaze or transparent paint, so they won’t behave the same on the model even where the colour is close.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Inktense Cyan is a little darker, more saturated, warmer than Thousand Sons Blue. They are different kinds of paint.
The same difference applies the other way round: Thousand Sons Blue is a little lighter, 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.
See Thousand Sons Blue on the colour wheel See Inktense Cyan on the colour wheel
All matches: Thousand Sons Blue equivalents · Inktense Cyan equivalents