Color Palette Generator 

Builds harmonious color schemes for designers. Allows exporting to aco and act files for import in to graphics applications. Allows printing of palettes. Supports WebSafe colors.
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PaletteMaker 

PaletteMaker creates a common 256-colour palette from a list of RGB pictures. It uses an iterative and interactive procedure in order to optimize those colours that you judge most important. PaletteMaker is flexible and achieves high quality.
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