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Chapter 10. Colors > Specifying Colors

Specifying Colors

Color can be specified in may ways. The English language – and all other languages – has words for the most common colors; for example, “red,” “blue,” and “brown.” If you tell someone that your house is red, your listener gets a general idea about the color of your house, but many different shades of red can be described as “red.”

Another way to describe a certain color is to use numbers. Paint manufacturers often provide sets of numbered color swatches so that you can ask for paint that is “blue number 216,” for example. On computer screens, the most common way to specify a color is to give an RGB value, which specifies the mixture of red, green, and blue. However, this, too, is an imprecise way to select colors because the result depends on the type of screen you have and how much light is in the room in which the monitor is located.


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