Karl .... Your referring to the area surrounding the actual dial card itself I'm assuming. I'm not good at describing color shades, but my eyes see what I would describe as a medium gray for the card's background, with a medium blue for the ring and bell. The outer area surrounding the card, but not part of it, is a light blue.
The reason for that, is because when I scanned the card, and test printed a copy, the result wasn't quite as close to the actual card as I wanted to achieve. So I increased the color saturation slightly, and that brought the final product closer to the actual card. That action caused that light blue appearance of the card's surrounding background color. I leave a small amount of background when I scan cards, to improve the contrast between the two, making it a little easier for myself, and other people to detect the edge of the card if they're using scissors to cut the card to size.
For the background of the actual card; it's gray on my monitor, but I haven't calibrated it for a while. When I print the card, it leans more towards a beige than a gray.
Jeff