Percy Jackson and the Olympians: Legends

Hemera is described as a beautiful woman in shimmering blue-and-gold robes.

Hemera has a warm presence. Despite this, she is quite gullible like her mother, Nyx. She is also very accommodating and always willing to fit in with someone's wishes or needs.

Hemera (Day) was born from Nyx (Night) through parthenogenesis (by herself). In the evening, her mother drew a veil of darkness between the shining atmosphere of her brother Aither and the lower air of earth (Chaos) bringing night to man. With each morning Hemera dispersed night's mists, bathing the earth again in the shining light of heaven (Aither). In ancient times, Hemera, her mother (whom she usually fights with), Aither, and the stars were the constant company of Ouranos in the sky. Hemera eventually marries Aither, whom she has a daughter, Thalassa, a primordial goddess of the sea.