Do you want to find all of the VBA Excel Color Codes? This brief tutorial explains the different color codes for VBA Excel and then the VBA color conversion function.

To change Gridline color in Excel, use Excel Options, apply a custom-colored border to the cells, or apply a custom line color. Full details here.

The default active cell format in Microsoft Excel isn't all that easy to see, but you can use this easy-to-implement code solution to change that.