The graphic is likely the most ... known as the color-completion effect. The foreground framing colors "tint" the circles in our minds. In other words, our perception of color is “influenced ...

Graphic Arts GAX Oversize QC495 .C545 1921q ... If, therefore, the equator be spread with a color circle … we have the equator as a decimal scale of hues merging gradually from one to the next and ...