ΔE 15.4, loose: different enough that you should pick on purpose. Calth Blue Clear is a little darker, more muted than Pale Blue Dot.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 15). Calth Blue Clear is a little darker, more muted than Pale Blue Dot.
The same difference applies the other way round: Pale Blue Dot is a little lighter, 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 Pale Blue Dot on the colour wheel See Calth Blue Clear on the colour wheel
All matches: Pale Blue Dot equivalents · Calth Blue Clear equivalents