Rose madder

Rose madder (also known as madder) is a red paint made from the pigment madder lake, a traditional lake pigment extracted from the common madder plant Rubia tinctorum.

Rose Madder
 
Rubia tinctorum, from whose root the colour is extracted
    Color coordinates
Hex triplet#E32636
sRGBB (r, g, b)(227, 38, 54)
HSV (h, s, v)(355°, 83%, 89%)
CIELChuv (L, C, h)(49, 142, 10°)
Source[Unsourced]
B: Normalized to [0–255] (byte)

Madder lake contains two organic red dyes: alizarin and purpurin. As a paint, it has been described as a fugitive, transparent, nonstaining, mid valued, moderately dull violet red pigment in tints and medium solutions, darkening to an impermanent, dull magenta red in masstone.

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