Michael Harding Kings Blue Light - This name was given by English manufacturers to Smalt, a Cobalt-based pigment that was used in the 16th -17th centuries as a less expensive alternative to Lapis Lazuli. Unfortunately, Smalt was prone to fade into a light grey, as some Veronese skies demonstrate. But the introduction of Ultramarine Blue made the original Smalt formula obsolete, and so Michael Harding offers a completely reliable substitute blend that evokes the aerial effects of the great Venetian decorators.
| Color Index | PB29, PW6 |
| Drying Speed | Average |
| Transparency | Opaque |
| Lightfastness | Excellent |
| Oil Content | Low |
| Tint Power | Average |
| Toxicity | Non-Toxic |
| ASTM D-4236 | ✓ |
![[no. 211] Kings Blue Light - M. Harding Oil - 40ml](http://www.raymar.com/cdn/shop/products/MH_Kings_Blue_Light_40ml_{width}x.jpg?v=1636502044)
![[no. 211] Kings Blue Light - M. Harding Oil - 40ml](http://www.raymar.com/cdn/shop/products/211KingsBlueLight_{width}x.jpg?v=1636502045)