ΔE 7.6, close: similar, with a visible difference side by side. Celestial Blue is a little lighter, more muted than Hoeth Blue.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Celestial Blue is a little lighter, more muted than Hoeth Blue.
The same difference applies the other way round: Hoeth Blue is a little darker, more saturated.
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 Hoeth Blue on the colour wheel See Celestial Blue on the colour wheel
All matches: Hoeth Blue equivalents · Celestial Blue equivalents