ΔE 16.9, loose: different enough that you should pick on purpose. Ink Skin is a little lighter, much more saturated than Transparent Black.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 17). Ink Skin is a little lighter, much more saturated than Transparent Black.
The same difference applies the other way round: Transparent Black is a little darker, much 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.
See Transparent Black on the colour wheel See Ink Skin on the colour wheel
All matches: Transparent Black equivalents · Ink Skin equivalents