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This is an approximation of the standard color wheel. It looks different than the color picker you'll see in graphics programs. The true primary colors are RED, YELLOW, and BLUE. Yellow is not available for computer or television screen construction and they must use green (which is actually chartreuse).
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This is the computer color wheel using its primary colors stepped in hexadecimal increments. This is the wrong wheel to use when selecting complementary and clashing colors. You can see how their postitions are shifted.
Below is a chart of the non-dithering (Safe) colors for computers set for 256-color screens.
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This is a pixel by pixel display of all the computer screen colors. Lightest is at the top and black at the bottom.
Note how narrow the yellow span is. There are lots of blues, reds, and greens. The small number of yellows makes it very difficult to create a good spread for golds and oranges. |
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To the left is an example of "dithering". The insert is the actual size of the image on top of an expanded view.
A selection of colored dots can be mixed together to create a color in between. Your eye sees a span of oranges and yellows that look ragged when expanded. |