If you were to go out and ask the first person that you meet to show you their business card, chances are that they would pull out a card that is more or less entirely white once all has been said and is now out of the way. The reason behind this is that white cards tend to be cheaper because the card stock that they are made out of is usually naturally white in color which means that you would only need to pay for a bit of black ink that would type out your required information on them.
However, just because something is commonplace doesn’t automatically suggest that it is the best course of action for you to take as well. Sometimes making your metal business cards efficient is all about experimentation that can make them more prominent than might have been the case otherwise. If you want to try out metal cards, you should consider using silver as your main color since this will reflect the metallic nature of your card as accurately as you might desire.
On the off chance that metal cards are not what you consider to be all that optimal, you should still avoid white as much as you possibly can. After all, white is the standard color for most business cards which means that you would become just another one of the directionless masses if this is what you opt for as well. Try to use black if you’re bold enough, and a brown color can also be used in order to make your card seem rather organic. Different colors create their own impacts on the human mind so choose carefully.