ΔE 13.1, fair: the same colour family, but not a straight swap. Ink Sepia is noticeably lighter than Sepia INK.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Ink Sepia is noticeably lighter than Sepia INK.
The same difference applies the other way round: Sepia INK is noticeably darker.
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 Sepia INK on the colour wheel See Ink Sepia on the colour wheel
All matches: Sepia INK equivalents · Ink Sepia equivalents