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Description

Color Swatch

Pigment Info

01544-3700 — Deep Madder Hue

The skill of the Old Masters meets modern research in this premium line of oils. Lefranc's Artist Oils use a distinctive Mediterranean palette and exclusive colors. Each color strikes the perfect balance between opacity and transparency.

Deep Madder Hue

This color contains the following pigments:

PR177—Anthraquinone Red
PV23—Dioxazine Violet

PR177—Anthraquinone Red

Pigment Type

anthraquinone

Chemical Name

n/a

Chemical Formula

C₁₄H₈O₂

Properties

Anthraquinone Red is a magenta colored pigment that is transparent and moderately intense. It tends to fade in tints and is suitable for all media.

Permanence

Anthraquinone Red has good lightfastness and permanence in its masstone, while its tint lightfastness is moderate. Overall lightfastness and permanence varies by brand.

Toxicity

Anthraquinone Red has no significant acute toxicity.

History

Anthraquinone pigments originated as textile vat dyes before being used as pigments. They became more popular with artists once it was discovered that careful preparation and grinding helped them to retain brilliance of color.

Alternate Names

Anthraquinoid Red.

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PV23—Dioxazine Violet

Pigment Type

organic

Chemical Name

carbazole dioxazine

Chemical Formula

C₃₄H₂₂Cl₂N₄O₂

Properties

Dioxazine Violet is transparent and has very high tinting strength. It is a staining pigment, very dark valued when it is used at full strength. Concentrated, it paints out nearly black, but it mixes with Titanium White to form bright, opaque tints of purple. PV23 produces slightly redder shades than PV37. Because the hue can vary with the conditions of preparation and grinding, it may be offered in red shade, blue shade, and so forth.

Permanence

Dioxazine Violet has good lightfastness. There may be some concern about it fading or shifting in color in tints and washes. Some artists have reported that PV37, a molecular variant, is more lightfast than PV23.