system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why are witches of the occult often portrayed as green-skinned?
gpt
The Wizard of Oz movie. It was of course in GLORIOUS TECHNICOLOR and they wanted the witch to look weird and otherworldly, so they chose green. It was also a colour that looked really vivid. The look was so iconic and terrifying to children of the day that it became the de facto image for witches.