Art Spectrum® Spectrum Yellow is a warm yellow pigment. It is part of the Yellow Hansa group of modern pigments first developed by the German Hoechst company in the early 1900s. It is a semi-transparent colour.
| Pigments | Lightfastness | Permanence | Transparent/Opaque |
| PY74 | ASTMI | **** (excellent) |
Semi Transparent |
ASTM Approved Permanent Colours American Society for Testing and Materials, conforming to standard D4302-90.
