Not within Excel.

You can change Windows Theme.

OR...................

Try having a look at Control PanelAccessiblity Options for some
manipulation of Display

Note: high contrast setting will affect the display of colors on the
worksheet.

http://support.microsoft.com/default.aspx?kbid=833258

The fill color, the fill pattern, or the line color of a WordArt or
AutoShape object in an Office document does not change


Gord Dibben MS Excel MVP

On Tue, 1 Jun 2010 15:44:01 -0700, Tess
wrote:

Hi,

We have an employee that's color blind. I have been trying to search a way
to customize the color scheme in Excel 2007 as the limited color of black,
blue, and silver doesn't help him. Is there a way to choose more bold colors
rather than the soft colors already provided; more advance customization?

Thanks in advance!

Tess