Flash glossary: Web-safe color palette
A web-safe color palette is a set of 216 color values designed for appearing on computer screens that were only capable of displaying 256 colors. This set of 216 colors could be shown without dithering, which at the time resulted in consistent display across platforms and better rendering performance. Currently computers typically have at least 16-bit color and usually support 24-bit color ("millions of colors"). Even mobile devices have at least 16-bit color because cameras are often features on handsets. For these reasons, the practice of using only "web-safe" colors is no longer considered as critical as it once was and designers can use any color in the color wheel.
Each Adobe Flash Professional file contains its own color palette, stored in the Flash document. Flash displays a file's palette as swatches in the Fill Color and Stroke Color controls and in the Swatches panel. The default color palette is the web-safe palette of 216 colors. To add colors to the current color palette, use the Color panel (Window > Color).
Use the Swatches panel (Window > Swatches) to save the current palette as the default palette, replace the current palette with the default palette defined for the file, or load the web-safe palette to replace the current palette.
Update the publish settings for GIF, JPEG, and PNG files to define the color palette used to export the image. Choose from the following options: Web 216, Adaptive, Web Snap Adaptive, or Custom.
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