Shiva
Blue throat: The epithet Nīlakaṇtha (Sanskrit नीलकण्ठ; nīla = "blue", 'kaṇtha' = "throat"). Since Shiva drank the Halahala poison churned up from the Samudra Manthan to eliminate its destructive capacity. Shocked by his act, Parvati squeezed his neck and stopped it in his neck to prevent it from spreading all over the universe, supposed to be in Shiva's stomach. However the poison was so potent that it changed the color of his neck to blue.