The interior decorator : being the laws of harmonious coloring adapted to interior decorations : with observations on the practice of house painting (1867)
Hay, D. R. (David Ramsay), 1798-1866 · Philadelphia : H.C. Baird · leaf 61
55 HARMONIOUS COLORING. DIAGRAM OF THE PRIMARY AND SECONDARY COLORS AND THEIR HUES. … A tint is not in itself a specific color or hue, but one of the gradations of any color or hue from its most perfect state of intensity towards white. The variety of tints is, therefore, incal¬ culably greater than that of colors and hues. A shade is, in like manner, one of the incal¬ culable…
Color · Aesthetics · Interior decoration · House painting
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.