The Color property returns or specifies the background color of a page. The Color property applies only if the Background property is set to cdrPageBackgroundSolid.
Examples:
The following VBA example creates a red background in the master page of the active document. Applying a red background to the master page applies that background to every page in the document.
Sub Test()
ActiveDocument.Pages(0).Color.RGBAssign 255, 0, 0
End Sub