Saladin was painted as a purple-skinned hook-nosed monster in the Luttrell Psalter

Evidence

In other cases, blue and purple were used to depict monstrosity, as in the iconic image from the Luttrell Psalter, where Richard the Lionheart fights Saladin, a purple-skinned, big-lipped, hook-nosed monster. — Sophia Rose Arjana, Muslims in the Western Imagination, 106

Categorization

• XREF: The blue/purple monster palette likely derives from the classical ‘bluish’ skin of demons and giants, connecting to the giant figure thread.