Credit: ©The Royal Society
    Image number: RS.17620

    ‘Range of blue tones’

    Date
    1861
    Creator
    Michel Eugene Chevreul (1786 - 1889, French) , Chemist
    Object type
    Library reference
    33074
    Material
    Technique
    Subject
    Description
    Three colour charts demonstrating the range of the colour blue as it moves from white to black.

    Figures 1, 2 and 3 from Michel Eugene Chevreul’s Expose d'un moyen de definier et de nommer les coleurs d'apres unem ethode precise et experimentale… [Presenting a way to define and name the colours according to a precise and experimental method…]

    Written in the description [as translated to English]:
    ‘Fig 1. Example of the graduation of a colour. We go from white to black.
    Fig 2. This is figure 1, divided into 22 equal superficial parts.
    Fig 3. This is figure 2, except the colour that is graduated in a continuous manner in figure 2 is now distributed in a uniform manner on each superficial part.’

    Figure 3 demonstrates the Chevreul’s method of definition: to represent colours in individual ‘parts’ that accommodate their variance in tone and brightness. His colour system was one of the first to do this.

    Michel Eugene Chevreul (1786-1889) French chemist was elected a Fellow of the Royal Society in 1826.
    Associated place
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          > France
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