Where did the colors come from that were used to paint Illuminated letters/Manuscripts?

'Illuminated manuscripts were created using delicate, natural materials, such as gold leaf, silverpoint, vellum, and bright, mineral-derived paints. Each manuscript was carefully illustrated, gilded, and written by hand, requiring a high degree of craftsmanship' - Google

Explanation:

doric, ionic, and corinthian, and there is no picture