Art Spectrum® Naples Yellow is a lovely pale pinkish gold yellow made using Mars Yellow. Mars Yellow was developed in the 1800s as an equivalent to Yellow Ochre but it gains extra strength from the absence of clay. The original Naples Yellow was one of the first synthetic pigments made in the 1620s.
| Pigments | Lightfastness | Permanence | Transparent/Opaque |
| PW6, PY35, PY42 | ASTMI | **** (excellent) |
Opaque |
ASTM Approved Permanent Colours American Society for Testing and Materials, conforming to standard D4302-90.
