This plum color is unfortunately no longer available. It has decent lightfastness, but may fade some in tints. As far as replacement pigments, PV19 comes close, though the PR88 sample we have seen was a bit closer to a true purple, while the violet kinds of PV19 are a touch redder than PR88. Bruce MacEvoy recommended other pigments due to lightfastness (such as the slightly lower chroma PV29). Though named as a red pigment, the sample we encountered of PR88 was a grape color.
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Thioindigoid Violet
PR88
Pigment Description
Resources
PR88 pigment data from David G. Myers, The Color of Art Pigment Database, Artiscreation.com
Information about PR88 from Bruce MacEvoy, Handprint Guide to Watercolors,
Stats
Lightfastness
Very Good but may be Variable
This may fade in tints with white (BWS 7 instead of 8). Sources were divided on PR88. Some said it was excellent while Bruce MacEvoy’s tests showed variability between brands.
Transparency
Semi-Transparent
Toxicity
Thought to be in the category of Lower Concern
Treat all pigments and paints with studio safety protocols.
Chemical Name
Thioindigoid
Dry Pigments listing PR88
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