Why does the body turn blue after death?

Its natural for a body to change its color after death. Within few hours of death the body changes it color. I am no expert to explain it scientifically but here is what I found on the internet. read more

This discoloration starts taking place after roughly 20-30 minutes after death and is of great use to coroners and investigators, as the intensity of color and/or the affected parts of the body provide vital information about the person's death. read more

This is where the body, due to its perishing, has oxygen voided from it, rendering the body a cold, lifeless blue colour. This is the same process that turns the skin blue during asphyxia. The colour of our skin is due to the oxygen levels in our body (hence why some appear more pale in their respective skin tone than others). read more

After the heart stops beating, the body immediately starts turning cold. This phase is known as algor mortis, or the death chill. Each hour, the body temperature falls about 1.5 degrees Fahrenheit (0.83 degrees Celsius) until it reaches room temperature. read more