The problem with the web palette is that it has only 216 colors to choose from (and they probably wouldn't be your first choices). If you are bored with your color options, you may want to try a color blender. Color blenders approximate any RGB color by mixing two colors from the web palette in a tiny checkerboard pattern. You can use these "hybrid colors" to fill areas of graphics or to create a background tile.
Color blenders all work about the same way. Simply select an RGB color (such as from an image using an eyedropper tool) and the blender converts it to a 2 2-pixel tile made up of two web-safe colors. The hybrid color is then available as a fill color to be applied to a selected object or marquee selection.
The Pros and Cons of Color Blenders
No technology is either all good or all bad, so let's look at the ups and downs of color blenders:
Creating Hybrid Colors
Color blenders are built into Fireworks, Photoshop 5.5+, and ImageReady. If you don't have these tools yet, try the less expensive ColorSafe from BoxTop Software, which has nearly identical features to DitherBox in ImageReady (shown later).
Photoshop and ImageReady use the DitherBox plug-in filter for creating "custom dither patterns" from web-safe colors (Figure). To use it, select an RGB color that you want to simulate. Then select the part of your image that you want to fill and choose Filter Other DitherBox. The DitherBox window shows you a close-up the tile used to make up your target color as well as a preview at actual size. When you are ready, click "Fill" to fill your selection with the dither pattern.
Figure: DitherBox filter in Photoshop and ImageReady
In Fireworks, the color blender (called Web Dither) is located on the Fill palette (Figure). Select an object containing a non-web-safe color. When you select Web Dither, the tiled pattern is applied to the selected object and becomes the active fill color. Be sure also to select the Hard Edge option to maintain web-safe colors. You can also use the Web Dither tool to simulate a transparent effect when you click the Transparency box.
Figure: Web Dither tool in Fireworks
Creating Hybrid Background Tiles in Photoshop
When creating a background tile filled with hybrid colors, the key is to set the width and height to an even number of pixels so the pattern repeats correctly. You can make the tile quite small (10 or 12 pixels square) to limit file size.
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