Yes, that is simple enough.

Goto ToolsOptions...ColorModify, you get a colour editor there.

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HTH

Bob

"Diane S." wrote in message
...
I would like to set up custom colors for cell fills. I have a custom theme
set up, but the theme colors and standard colors are my only options for
cell
fills. Is it possible to change the "Standard colors" palette? I have a
total
of 18 corporate colors that I need to have easily accessible.

Thanks.