A famous yellow which can come close to some (but not all) cadmium yellows. This hue is typically portrayed as a cool yellow, however in the context of an intense color-mixing project, we found there are differences in this color from brand to brand in oils. Many of the ones we have encountered in oils were a bit warmer than we realized when we compared it with truly acidic lemon yellow cadmiums. PY184 is light, bright, high chroma, and gorgeous overall. In watercolor, Schmincke's version is a lot brighter and clearer than Daniel Smith's version, which is a rather fascinating lower chroma, lower lightness yellow. Monona Rossol's work notes that natural sources are likely to contain impurities. The Artist's Guide to Health and Safety contains a section on health problems related to pigments containing Vanadium and Bismuth.