Discuss the effects associated with contrast of extension and simultaneous contrast.

What will be an ideal response?

Contrast of extension addresses comparing one color against another by weighing how much of a color is needed to achieve harmony or balance when compared with another. Simultaneous contrast is a phenomenon where the human eye seeks harmonious balance in the complement of a color. Simultaneous contrast also occurs in color relationships in which the interaction of colors affects how people perceive them. An example would be how the color of a design element in a composition seems to shift in hue, value or intensity depending on the dcolor that surrounds it in the composition.