Business Card or some people use the term as Visiting Card mostly in India the term is Visiting card. It comes in various dimensions however, the standard dimension is 3.5 inches by 2 inches or 88.9mm by 50.8mm.
Logo is one of it’s important part, Design Mania™ always insist their customers to put the logo alone on one side, if the plan is of 2 sided visiting card design. Color of it or the background is totally depending upon the logo color or the company theme. Logo color shaded to use more in background is preferred, need to make sure the Logo should not go beyond 50% of the visiting card. As said earlier, while designing VC, try to put shades of Logo color, it will make the visiting card more professional, well it depend upon the type of business to reflect in VC.
Number of color concepts are there like, one color, two color, spot colors, 4 colors, special colors etc. All these color variations are affection on the cost of printing too. The more colors are being used the more you need to pay for printing. There are few companies who want to promote all stationary in specific colors only. However, shaded in one color visiting card is not that impressive compare to color.
Two color designed Business card can make good impression on other (Hope that is well designed) it will turn your impression to the person in “Unique” category, same as special color, but that is more related to printing. I have came across one of our customers existing Visiting card which was in black and white on front side and colored at back side, concept was special but design was too ugly, (We had to take care of designing part later on)