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Top Pigment

Pyrrole Red

PR254

Pigment Description

PR254 is Lightfast, soaring chroma, and used on Ferrari's. What more could a person want. A recommended replacement for many reds, it is a very intense color. We did a deep dive on Pyrrole Red where we made comparisons to cadmium red, explored its complements, and also its use in mixes.

There are a couple of different Pyrrole Reds and this one, PR254, is redder than PR255 which is more orange. Pyrrole Red PR254 may also have slightly better lightfastness than the orange variety, even though they are both listed as ASTM I. There is also another variant called Pyrrole Rubine PR264, which may also be an interesting color variation and is a separate pigment.

Resources

Stats

Lightfastness

Excellent

While overall the lightfastness of this color is excellent, Golden’s recent [Lightfastness testing[(https://justpaint.org/astm-lightfastness-testing-for-oil-paints/) revealed a slight falloff in performance depending on the mixing white. Flake white in linseed oil and pure zinc white took Pyrrole Red to an ASTM II. In all other mixing whites that they tested it performed at ASTM I - excellent.

Transparency

Varies

Toxicity

Thought to be in the category of Lower Concern

Treat all pigments and paints with studio safety protocols.

Dry Time

Medium

2-7 days. Some dry faster and may contain driers.

Chemical Name

Diketopyrrolo pyrrole (DPP)

C₁₈H₁₀ClNO

Dry Pigments listing PR254

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