Hel, daughter of Loki

'Her form was uncompromising, straight-spined, with long legs, strong, capable hands firm feet [...] Half of her was black, and half blue. Half of her, those who saw her also reported, was living flesh, and half was dead. Sometimes the line between black an blue split her cleanly [...] but sometimes the black and blue floated on and in each other. They were beautiful, like the last blue of the sky meeting the dark of the coming night. They were hideous, the colour of bruises on battered or moribund flesh'

-A.S Byatt, Ragnarok, The End of the Gods