Optical mixtures the bezold effect
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Optical Mixtures the Bezold Effect. Bridget Riley. Optical Mixtures. Two or more colors placed next to each other to create a blending, blurring , or neutralizing effect. Blending: Two colors placed next to each other in small amounts will seem to create their mixture, Blue+red = violet.

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Optical Mixtures the Bezold Effect

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Optical Mixturesthe Bezold Effect


Bridget Riley


Optical Mixtures

  • Two or more colors placed next to each other to create a blending, blurring , or neutralizing effect.


Blending: Two colors placed next to each other in small amounts will seem to create their mixture,Blue+red= violet


Size of color area and value of adjacent colors will determine how successful the illusion is.

Smaller areas of color, and colors that are closer in value tend to create more convincing blends.


Blurring: Two colors of similar hue, value and saturation will seem to blur into one another, making it difficult to determine their edges. This works best with ANALOGOUS colors—Colors next to one another on the color wheel


Neutralizing: two complements will optically mix to produce gray. This was the theory the pointilists followed.


George Seurat, Bathers


  • In actuality, it doesn’t always work. Many times complements produce OPTICAL VIBRATIONS, rather than optically mixing


Why use optical mixtures rather than just mixing paints?


Creating Optical Mixtures using additive primaries create an effect similar to the light-based color system: the mixture seems more luminous than traditional paint mixtures. Red and Green seem to create yellowBlue and red seem to create magentaBlue and green seem to create cyan


  • Additionally, more luminosity is created than with pigment mixing----similar to the additive system.

  • This was the intention behind movements like Pointilism and Impressionism—to create a sense of light by placing colors next to one another rather than mixing colors.


Monet


Monet, Haystacks


Chuck Close, Agnes


Chuck Close


Chuck Close, Studio shot


Richard Anuskiewics


The Bezold Effect

  • Wilhelm Bezold, a textile designer discovered that by changing one dominant color in a pattern or composition, it is possible to change the entire ‘look’ and ‘feel’ of the composition.


Does the size of the red bricks seem to change? The size of the grout between the bricks? What happens to the white square? Which seems more stable?


Does our perception of any colors change?


Which seems ‘softer’? How is the Bezold effect related to simultaneous contrast in this example?


  • The Bezold Effect will be most effective if the changing colors are very different in hue and/or value—which is why so many examples showed a black/white change.


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