216 safe web colors

At one time many computer displays were only capable of displaying 256 colors. And there were various attempts to make a "standard" color palette. In fact, on 256-color displays applications can set a palette of any selection of colors that they choose, dithering the rest. But these safe colors were chosen specifically because they matched the palettes selected by the then leading browser applications. The number 216 was chosen partly because computer operating systems customarily reserved some colors for their own use. Fortunately, there were not radically different palettes in use in different popular browsers. The safe colors do not all have standard names, but each can be specified by an RGB triplet.

These 216 six-digit hexadecimal color codes define what are considered safe, non-dithering colors. This is sometimes called the Netscape palette. This palette was defined to display color graphics based on an 8-bit system (28 to 40 colors were reserved by operating system). The goal was to have a common set of colors for many kinds of computer displays and operating systems like Macintosh, Windows or Unix. The importance of these safe colors has been reduced dramatically over the years as display monitors have become more capable to display many colors. 16 or 32 bit color systems are common (16 bits means 216 = 65 536; 32 bits means 232 = 4 294 967 296). Notice that all safe colors are Hex Triples. If the monitor is an 8 bit one, a color not in this safe list will dither by adding pixels of two different colors from this safe list to the same area to try to approximate the color you want. This dithering causes the colored area to appear speckled.

Posted at 10 of November, 2013 2:54 PM. Written by insexes
Labels: insexes cribs, colors

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