A palette is also called a CLUT (color look-up table).

On monochrome systems, the term palette is sometimes used to refer to the available fill patterns.

(2) In paint and illustration programs, a palette is a collection of symbols that represent drawing tools. For example, a simple palette might contain a paintbrush, a pencil, and an eraser.

Color Theory and Consistency on the World Wide Web
Describes how to use the 216-color CLUT (color look-up table) to create graphics that look consistent on all browsers.

General Tutorials--Color part III
Describes the purpose and limitations of color palettes in graphics applications.