There is a little bit of confusion surrounding this color. Jacksons lists a Coeruleum Hue as well as Coeruleum. Blick and Jacksons have (at the time of this writing) two different listings for the pigments which differ on PB35 vs PB36. If the pigments are important to you please check with Daler Rowney as well as the retailer to be sure this is what you’re looking for. As an additional note, usually when something is labeled hue it does not contain the genuine pigment. This color appears to contain genuine cerulean along with a lot of other colors which would normally make up the hue.