Get RGB values of Excel Color?

Is it possible to get the RGB values currently assigned to an Excel color?

For example, I would like to return the RGB values currently assigned to ActiveWorkbook.Colors(17)

I can set the values of this color with this

ActiveWorkbook.Colors(17) = RGB(txtRed.Value, txtGreen.Value, txtBlue.Value)

Just wondering if somehow I can get these values back.

Thank you for helping me.

Excel 2000