Back in the days this color palette was constructed, almost all people had computers with 256 color display. Some people still have today, but fortunately this number is decreasing rapidly. They are quit frankly ugly colors. When specifying a color in RGB, you set one of the three primaries' value to a number between 0 and 255. The reason there are not 256 colors to choose from is that some of the colors on 256 color displays had to be reserved for colors used by the Operating System.
T here are two more systems of specyfing the websafe colors.
The last system used is percentages. Figure 1 T here is a way to make a bigger palette web-safe. This is acchieved by using the websafe colors together to form checkerboard patterns. Whether you think this effect is good enough to use or not, is up to you. All Rights Reserved.