9 Color theory

This chapter covers

  • The color wheel and color relationships
  • How to create shades, tints, and associated terminology
  • The psychology of color
  • How to pick and apply a color scheme, including accessibility considerations
  • The different web color modes and color discrepancies across screens

If you search for “color optical illusions” in your favorite search engine, you’ll get a number of results, including some that look like the image is moving. This perceived movement is due to the color choices, the structure of our eyes, and our perception. The color choices that create the illusion are a part of the subject of color theory. One of the more famous color optical illusions, shown in figure 9.1, is Adelson’s checker-shadow illusion ...

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