ΔE 13.2, fair: the same colour family, but not a straight swap. Sybarite Green is noticeably lighter, more saturated than Seawater.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Sybarite Green is noticeably lighter, more saturated than Seawater.
The same difference applies the other way round: Seawater is noticeably darker, 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 Seawater on the colour wheel See Sybarite Green on the colour wheel
All matches: Seawater equivalents · Sybarite Green equivalents