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The colouration of this species is sexually dimorphic, the males are more intensely coloured having a violet body with a yellow back, the yellow colour continuing on to the upper lobe of the caudal fin and the dorsal fin has a purple margin.. The females are normally lavender in colour and have a yellow back and caudal fin. [4]
The body coloration is greyish blue with a bright yellow zone on the back. The yellow area goes from the forehead, between the eyes, to the tail, and includes the dorsal fin and the caudal fin. This area corresponds more or less to the upper third of the body. The belly is plain white. [6]
Composition with Red, Blue and Yellow is a 1930 painting [1] by Piet Mondrian, a Dutch artist who was a leading figure in the Neo-Plasticism movement. It consists of thick, black brushwork, defining the borders of colored rectangles. As the title suggests, the only colors used in it besides black and white are red, blue, and yellow.
Yellow dyes are "about as numerous as red ones", [37] and can be extracted from saffron, pomegranate rind, turmeric, safflower, onion skins, and a number of weedy flowering plants. [ 37 ] [ 38 ] Limited evidence suggests the use of weld ( Reseda luteola ), also called mignonette or dyer's rocket [ 39 ] before the Iron Age, [ 37 ] but it was an ...
YInMn Blue is chemically stable, does not fade, and is non-toxic. It is more durable than alternative blue pigments such as ultramarine or Prussian blue, retaining its vibrant color in oil and water, and is safer than cobalt blue, which is a suspected carcinogen and may cause cobalt poisoning. [26]
The word is derived from the Latin word caeruleus (Latin: [kae̯ˈru.le.us]), "dark blue, blue, or blue-green", which in turn probably derives from caerulum, diminutive of caelum, "heaven, sky". [2] "Cerulean blue" is the name of a blue-green pigment consisting of cobalt stannate (Co 2 SnO 4). The pigment was first synthesized in the late ...
The metals and common colours of heraldry. One system of hatching is shown at right. Tinctures are the colours, metals, and furs used in heraldry.Nine tinctures are in common use: two metals, or (gold or yellow) and argent (silver or white); the colours gules (red), azure (blue), vert (green), sable (black), and purpure (purple); and the furs ermine, which represents the winter fur of a stoat ...
One of the dye's main chemical ingredients is red dibromo-indigotin, the main component of tyrian purple or tekhelet. [4] The dye will turn indigo blue, similar to the color of blue jeans, if exposed to sunlight before the dye sets. Subspecies. Hexaplex trunculus trunculus (Linnaeus, 1758)