Pyrrole Red Rubine

PR264

Alternate Names

Pyrrole Red Deep

Pyrrole Crimson

Diketo-pyrrolo Pyrrole Rubine

Pigment Description

Often said to be a crimson with excellent lightfastness, but it may be worthwhile to do your own tests just in case. PR264 is sometimes recommended by some as an alternative to Alizarin Crimson, however it does not have some of the brown note in certain Alizarins, so PR264 may need just a touch of modification if you want it to emulate certain Alizarin varieties.

We were surprised to find that in watercolor, Bruce MacEvoy does not actually recommend this pigment, and suggests Cadmium Red and Perylene Maroon instead. Golden tested their QoR watercolors and their version of PR264 performed very well.

Resources

PR264 pigment data from David G. Myers, The Color of Art Pigment Database, Artiscreation.com,

Spurgeon, Tad. Living Craft: A Painter's Process. Mt. Airy, Philadelphia, PA: Zoetrope, 2018. Newer version available here: https://www.thomaskitts.com/page/36804/tad-spurgeons-living-craft

Information about PR264 from Bruce MacEvoy, Handprint Guide to Watercolors, General information about this class of pigments from Handprint,

Stats

Lightfastness

Said to be Excellent, but note on watercolor

Excellent marks for lightfastness (all 8’s on the BWS), but Artiscreation notes ASTM I-II. We also have not seen data on its use in various mixing whites. May be much less lightfast in watercolor. Some brands tested by Bruce MacEvoy did not perform as well when thinned. However, the pigment used in Golden’s watercolors seemed to have excellent performance, so if using watercolor, perhaps do your own lightfastness tests.

Transparency

Transparent, Semi-transparent

Most paints made with this pigment are Transparent.

Toxicity

Thought to be in the category of Lower Concern

Treat all pigments and paints with studio safety protocols.

Particle Size

Very Fine

Chemical Name

Diketo-pyrrolo pyrrole

Dry Pigments listing PR264

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