Grumbacher Academy Acrylic Paint, 90ml/3 oz Metal Tube, Cerulean Blue Hue A classic color often referred to as sky blue. A rich Azure color with a greenish undertone Ideal for painting skies in landscapes and seascapes ASTM lightfast rating of 1- Excellent; Made in USA Highly pigmented and superior tinting strength Part of a student line of 48 briliiant process colors, metallic and iridescent colors at an affordable price