PB28 CI#77346 (Cobalt Blue)
Series 2
It was discovered in 1802 by French chemist Louis Thénard as a cheaper alternative to lapis lazuli pigment. This watercolor has good permanence, color brilliance, and transparency. It has a semi-transparent opacity and excellent lightfastness.
Cobalt blue became popular among artists due to its vibrancy, stability, and low cost. It is a good substitution for ultramarine blue for painting skies. Some modern artists use different pigments and dispersal methods to create even more vibrant colors
Light Fastness: 8/8
