Depends. Skin lesions in sepsis vary depending on the causative agent. For instance in infection related to raw shellfish (called vibrio) the skin lesion is blue/purple and forms large blisters. In an infection from meningococcus (a bacteria) the sores are raised, palpable and purple (so called purpura fulminans). Many other skin lesions can be seen in sepsis it just depends on what causes it.