postmortem livedo

post·mor·tem li·ve·do

a purple coloration of dependent parts, except in areas of contact pressure, appearing within 30 minutes to 2 hours after death, as a result of gravitational movement of blood within the vessels.

post·mor·tem li·ve·do

, postmortem lividity (pōst-mōr'tĕm li-vē'dō, li-vid'i-tē)
A purple coloration of dependent parts, except in areas of contact pressure, appearing within 1/2-2 hours after death, as a result of gravitational movement of blood within the vessels.