AGLIONBY, William, Painting Illustrated in Three Diallogues. Containing some Choice Observations upon the Art. Together with The Lives of the Most Eminent Painters From Cimabue, to the time of Raphael and Michael Angelo. With an Explanation of the Difficult Terms, London, John Gain, 1685.1 quotations
Wherein particularly lies the Art of Colouring ?
Beside the Mixture of Colours, such as may answer the Painter’s Aim, it lies in a certain Contention, as I may call it, between the Light and the Shades, which by the means of Colours, are brought to Unite with each other ; and so to give that Roundness to the Figures, which the Italians call Relievo, and for which we have no other Name : In this, if the Shadows are too strong, the Piece is harsh and hard, if too weak, and there be too much Light, ’tis flat. I, for my part, should like a Colouring rather something Brown, but clear, than a bright gay one : But particularly, I think, that those fine Coral Lips, and Cherry Cheeks, are to be Banished, as being far from Flesh and Blood.
RICHARDSON, Jonathan, Two Discourses. I. An Essay on the whole Art of Criticism as it relates to Painting. Shewing how to judge I. Of the Goodness of a Picture ; II. Of the Hand of the Master ; and III. Whether ‘tis an Original, or a Copy. II. An Argument in behalf of the Science of a Connoisseur ; Wherein is shewn the Dignity, Certainty, Pleasure, and Advantage of it. Both by Mr. Richardson, London, W. Churchill, 1719.1 quotations
However I will here make him [ndr : au lecteur] an Offer of an Abstract of what I take to be those by which a Painter, or Connoisseur, may safely conduct himself, [...] V. The Colouring whether Gay, or Solid, must be Natural, Beautiful, and Clean, and what the Eye is delighted with, in Shaddows as well as Lights, and Middle Tints.