Use swatches and not the color picker widget The Color core modules allows for a user to perform css color overrides via the theme settings page. This is handy for exposing the means for users to update color specifications without touching a line of CSS code. I've successfully integrated the Color module with an Omega 3.x subtheme. However, we have a range of branded color swatches that I'd like to make available to our users, rather than the too-broad color picker that the color module uses.

So; I'd like to swap (it can be additive, i.e., use one or the other) the Drupal color picker with a pane of swatches that I can configure.

How to do so?
Interesting question - You should try the color field module - 


  Color Field is simple field that use a hexadecimal notation (HEX) for
  the combination of Red, Green, and Blue color values (RGB).


This uses the jquery simple color widget



and you can add your colors directly in as hexadecimal codes when you setup the field: