The Pigment Bazaar

I ordered six 5 ml tubes of watercolor paint yesterday for my palette expansion project. While trying to figure out which paints to order, I ran across an extremely useful site, Artist Pigments.org. The developers of this site have created an art material and pigment database containing as of this writing catalog entries for 78,729 art materials with color swatches for 21,203 of them. The catalog has entries for many different types of art materials, including watercolors, gouache, acrylics, oils, colored pencils, pastels and others. Where pigment information has been supplied by the manufacturer it is included in the catalog entry. Most of the swatches in the catalog have also had their color measured accurately with a spectrophotometer.

As an example, I mentioned earlier that I was interested in purple magenta which I have as a Schmincke watercolor half-pan. The entry for that Schmincke paint is here, which tells us it is made out of the pigment PR122 (quinacridone magenta). The page for watercolors with this pigment lists many different paints from lots of manufacturers. After reviewing these, I ended up ordering the Winsor & Newton Opera Rose.

The catalog is interactive and lets you save your own collections of art materials. I used this feature to save a list of paints in my current Pocket Palette and prospective paints for the Folio Palette that I am assembling.

This catalog builds upon lots of earlier work, especially Bruce MacEvoy’s marvelous site handprint, but MacEvoy ceased building out the watercolor material on his site around 2014. It is still invaluable: just today an artist with an YouTube channel about color wheels (Color Nerd) posted a video saying how the only color wheel he actively uses is MacEvoy’s pigment-based chart. I have a printout of his chart somewhere in one of my art drawers. Prior to MacEvoy, color theorist Michael Wilcox wrote a book on the finest watercolor paints, but his book is from 1991 and is quite out-of-date.