Technical Paint Info
Composition and Permanence
The color index name is established and published by the American Association of Textile Chemists and Colorists and The Society of Dyers and Colourists. The color index name is a generic category and does not refer to a specific pigment. While it enables the artist to form a general idea of opacity, transparency and lightfastness, for a pigment in a certain color space, it does not provide definitive information. Many grades of pigment are available from a number of manufactures with a very wide range of physical attributes.
The chemical name is a brief, commonly used generic type designation of the pigment types composition. in conjunction with the color index name, the chemical name can be used to broaden the artists understanding of the source and nature of the pigment used.
The permanence of a color is a measure of the lightfastness of the pigment when dispersed in a vehicle and subjected to conditions which emulate the exposure normally given a fine arts object. Such ratings are generally considered vehicle or media dependent and can vary between media – thus pigment which is suitably lightfast for oil color, might not be lightfast in watercolor. Our ratings utilize a combination of historical data, accelerated testing and data from pigment manufacturers to establish one of the toughest standards among artists colormakers today.
Transparency and Opacity
Each of our colors has been provided a designation indicating relative degrees of transparency to opacity. Please consider these as a guideline because any thin film application, while not necessarily transparent, can be interpreted by the view as such.
Health and Safety
Our colors have been evaluated by a board-certified toxicologist in a manner consistent with current legislation and Consumer Product Safety Commission guidelines. Where needed, labels carry specific instructions on safe use and handling as well as information required by the State of California to comply with Proposition 65.
Artists’ colors are preparations of a variety of materials and when handled correctly should not represent a serious hazard to health based on our current knowledge. We do recommend artists use normal safe-handling care and practice when working with our or any manufacturers’ color, including not applying color to the skin, taking care not to ingest the product, not smoking/drinking or eating while working and carefully reading all labels for specific warnings. For more information please refer to our Safety Data Sheet or write to us at
PO Box 215
West Linn, OR 97068-0215
ASTM is a standard practice for labeling art materials for chronic health hazards. A statement of conformity to this standard appears on each of our labels to assure the artist that our formulations have been independently reviewed by a certified toxicologist and that required cautions and warnings are in place for the artists’ guidance.
Our colors are professional products not intended for use by children under thirteen.
Fine Art Gouache
Graham fine art gouache is pure color—crafted with high-performance, lightfast pigments, each with its own natural opacity. We don’t add chalk or adulterants that would degrade the appearance of the color when dry. By mixing white when, where, and how you want it, you’re in control of achieving the colors you imagine. The base of Northwest blackberry honey protects the color’s brilliance and offers direct, smooth application.
Compare Our Color
Graham colors are worthy of Da Vinci—but made for you.
Every choice we make—from using the purest, traditional ingredients to taking the time to custom mill each pigment—is in service to one goal: creating rich, vibrant colors to excite and enhance your work. Because of our choices, no other paint offers you the same level of pigment as ours.