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Along the bottom of this page you should see a 16 shade gray scale, and three each of six primary colors, with the hexadecimal code for each one. For best results, expand this window to Full Screen, and close Explorer Bar|Favorites. The HTML background color code for this page is <bgcolor=111111>, and <bordercolor=FFFFFF>. The actual appearance of these color codes on your monitor is a function of your computers brightness, contrast, and color control settings, which are in turn determined by your personal preferences and room lighting conditions, etc. Some graphics cards are controlled by software accessible through a custom control panel which typically overrides the operating system control panel. Consult your system documentation for specific adjustment procedures. These colors can be adjusted to look pretty good in a wide variety of lighting conditions. However, you should avoid setting the brightness and contrast too high in an attempt to compensate for a brightly lighted room, as this can potentially burn the phosphor on your monitor screen. If you cannot discern all 16 shades on the gray scale, you may be missing some detail in the graphics which you wish to view.
The hexadecimal color codes control the intensity of the three fundamental phosphor dots which form each pixel on the display screen. The following table indicates the correlation between the code and the colors.
The base 16 hexadecimal code (typical of all web pages) allows for 256 intensities for each color. Specifying equal values for each color produces the 256 shade gray scale. 256 x 256 x 256 = 16,777,216 different colors. This is 24 bit color since each hexadecimal digit is defined by a 4 bit binary number. For example: '1111' in binary = 15 decimal, or 'F' in hexadecimal
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