Cobalt Violet Pale
Update: Unfortunately PV49 as a pigment was discontinued in the wider pigment world. This is an absolutely smashing electric violet. This pigment is not made for tinting, nor for its opacity, rather it is one of the few single pigments with some good lightfastness at this area of the spectrum. One might want to do your own long-term comparisons of how this pigment yellows in different binding oils and different manufacturers. We gravitate toward Williamsburg’s Cobalt Violet Light in safflower oil, an electric purple (this page is dedicated to the linseed oil version). The chroma of the wet paint is incredibly high for an inorganic, lightfast pink-violet. In linseed oil especially it dries a little yellower.
In 2015, Golden performed lightfastness tests on colors which had not been rated by the ASTM. At that time, PV49 received an estimated equivalent rating of ASTM I. In 2023, Golden published a vital series of tests on their colors and how they performed in mixes with various white paints. There were some surprises which indicated that overall Cobalt Violet Light has poorer lightfastness than was previously thought. More information can be found at https://justpaint.org/astm-lightfastness-testing-for-oil-paints/. Unfortunately this color appears to have been discontinued due to changes in the wider pigment industry.