The practical colorist : a pathfinder for the artist printer (1900)
Sheldon, Frederick M. (Martin) · Burlington, Vt. : Owl Press · leaf 19
ch has but very little of any other color in its makeup. COLOR Theoretically they should be absolutely pure, but practically there is Triangle a little red, and yellow, and blue in all. Red is at its strongest No.l intensity at the top of the triangle, and all intermediate hues, lying Primary… … BLUE YEI-LOW TRIANGLE NO. 1 It is readily seen, that each primary is related to all colors on the two sides of the triangle which form its angle, as it enters more or less largely into the makeup of all these colors, and it is also apparent that it cannot be related to those on the third side of…
Color printing · Illustration of books
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
![An illustration from Divina proportione : opera a tutti glingegni perspicaci e curiosi necessaria oue ciascun studioso di philosophia: prospettiua pictura sculptura: architectura: musica: e altre mathematice: suavissima: sotile: e admirabile doctrina consequira: e delecterassi: co[n] varie questione de secretissima scientia (1509)](https://img.insideoutlibrary.com/img/200/ia-divinaproportion00paci-300-463.webp)
