I made a small tool in C2 to convert http://paletton.com/ text output into GraphicsGale palettes. It probably could've been done a lot better though so I have included a link to the .capx so anyone can edit it (and maybe add functionality to other websites that do the same thing).
You can also export the entire palette as a PNG to use whever you want, click colors to delete them and append more code onto the textbox to add more colors. This supports up to 256 colors.
Link to the tool:
https://dl.dropboxusercontent.com/u/238 ... index.html
Link to the .capx:
https://dl.dropboxusercontent.com/u/238 ... arser.capx
You also need the Canvas plugin by R0J0hound to edit it:
Edit: Added color drag - just click and drag any color and release it to change the order of the colors.