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Choose safe colors for your website



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The standard set of color names is:
aqua, black, blue, fuchsia, gray, green, lime, maroon, navy, olive, purple, red, silver, teal, white, and yellow.
These 16 colors are defined in HTML 3.2 and 4.01 and correspond to the basic VGA set on PCs.
Most browsers accept a wider set of color names but use of these is not recommended.

Color names and sRGB values

▉ Black="#000000"  ▉ Green="#008000"  ▉ Silver="#C0C0C0"  ▉ Lime="#00FF00"
▉ Gray="#808080"  ▉ Olive="#808000"  ▉ White="#FFFFFF"  ▉ Yellow="#FFFF00"
▉ Maroon="#800000"  ▉ Navy="#000080"  ▉ Red="#FF0000"  ▉ Blue="#0000FF"
▉ Purple="#800080"  ▉ Teal="#008080"  ▉ Fuchsia="#FF00FF"  ▉ Aqua="#00FFFF"

Thus, the color values "#800080" and "Purple" both refer to the color purple.

Hexadecimal color values

Values like "#FF9999" represent colors as hexadecimal numbers for red, green and blue.
The first two characters following the # give the number for red, the next two for green and the last two for blue.
These numbers are always in the range 0 to 255 decimal.If you know the values in decimal,
you can convert to hexadecimal using a calculator, like the one that comes as part of Microsoft Windows.

Enter RGB or Hex value and press appropriate button to convert
red:Hex color value
green:
blue:

Browser safe colors

New computers support thousands or millions of colors, but many older color systems can only show up to 256 colors at a time. To cope with this, these browsers make do with colors from a fixed palette.
The effect of this is often visible as a speckling of colors as the browser tries to
approximate the true color at any point in the image. This problem will gradually go away as older computers are replaced by newer models.

Most browsers support the same so called "browser safe" palette. This uses 6 evenly spaced gradations in red, green and blue and their combinations. If you select image colors from this palette, you can avoid the speckling effect. This is particularly useful for background areas of images.

If the browser is using the browser safe palette, the page background uses the nearest color in the palette. If you set the page background to a color which isn"t in the browser safe palette, you run the risk that the background will have different colors depending on whether the computer is using indexed or true-color.

These are constructed from colors where red, green and blue are restricted to the values:

RGB0051102153204255
Hex00336699CCFF
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