Colours made from 5-(2'-hydroxy-3'-naphthoyl)-aminob
1 colour that our sources say are made from 5-(2'-hydroxy-3'-naphthoyl)-aminob.
Photo credits on this page
The small pictures above come from Wikimedia Commons under free licences. Some are cropped to fit.
- Benzimidazolone pigments: Hardcoreraveman, Public domain, source