Claire has attended:
Excel Advanced course
Colour Palette
Do any companies design colour palettes for excel?
RE: Colour Palette
You could type "colour palettes for excel" into Google.
Also try the following websites:
http://www.softpedia.com/get/Office-tools/Other-Office-Tools/Color-Palette-for-XL.shtml
http://www.office-addins.com/-excel-addins/excel-color-manager.html