- published: 10 Jan 2014
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Bole is a shade of brown. There is an English word bole meaning the trunk of a tree, but according to the American Heritage Dictionary, this word [1] is simply a homograph/homophone that does not share the etymological origin of the color word bole [2], which derives from Latin bōlus (lump of earth) and refers to a kind of soft fine clay whose reddish-brown varieties are used as pigments, hence its use as a word for a reddish-brown color. Another name for the color bole is terra rosa. The color name terra rosa has been used as a synonym for bole since 1753. The color "terra rosa" is classified a warm red color. In art, it classified as being similar to Venetian red, but more pink or salmon.
Bole is one of the oldest color names in English. The first recorded use of bole as a color name in English was in the year 1386.
Bole may refer to:
Color or colour (see spelling differences) is the visual perceptual property corresponding in humans to the categories called red, green, blue, and others. Color derives from the spectrum of light (distribution of light power versus wavelength) interacting in the eye with the spectral sensitivities of the light receptors. Color categories and physical specifications of color are also associated with objects, materials, light sources, etc., based on their physical properties such as light absorption, reflection, or emission spectra. By defining a color space, colors can be identified numerically by their coordinates.
Because perception of color stems from the varying spectral sensitivity of different types of cone cells in the retina to different parts of the spectrum, colors may be defined and quantified by the degree to which they stimulate these cells. These physical or physiological quantifications of color, however, do not fully explain the psychophysical perception of color appearance.