A very, very rich velvety color with a deep surface. Slightly darker, greener than Cerulean. Originating from the Williamsburg neighborhood of Brooklyn, over one hundred seventy artist quality oil colors are now made in New Berlin, NY. Each color is milled in small batches to provide a unique expression of each pigment used. For that reason, our paints are not homogeneous, as some colors require a very fine grind that results in a rich, smooth paint, while others are best allowed to retain more texture and provide a little more resistance and less gloss. Technical Detail Lightfastness rating Opacity / Transparency Opaque Drying Time Fast (1-2 days) Grind Very Fine Pigment Detail PB36 CI number:77343 Common name:Cobalt Chromite Blue Green Spinel Classification:Synthetic Inorganic Chemical Description:Cobalt Chromite Blue Green Spinel