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Color and CSS

To use color well in CSS, you'll want to know about the various ways color can be defined. Although color can be applied using any number of properties, there are specific value options that you'll want to know about.

Hexadecimal Color

Hexadecimal (hex) is a base 16 number system, useful in computing because 8 bits (1 byte of memory) can be represented by a single number or letter. The system uses numbers from 0 to 9 and letters from a to f in any combination of six (and starting with an octothorpe) to represent the correlating red, green, and blue colors (#RRGGBB).


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