Answer: It is no longer circulated throughout the body supplying oxygenated blood. The un-oxygenated blood turns blue which makes the body look “dusky”. Since it is no longer circulating, the blood pools in the lowest part of the body making these areas looked dark or bruised. (If the person was laying on their back, the blood would pool on the backside of the body)
Step-by-step explanation:
When a person dies, the heart stops circulating blood and the lungs stop oxygenating the recirculated blood. The blood turns blue and pools in lowest place.