When you can't decide which colors to put together why don't you try a monochromatic card. They always very elegant and you can't go wrong. One of the favorite classes by many of my customers, I did in years past, was a Black and White class...hum may have to do that one again it has been awhile.
Monochrome describes paintings, drawings, design, or photographs in one color or shades of one color. A monochromatic object or image has colors in shades of limited colors or hues.
At Minneapolis regional Shannon West had personalized stamp made that read ... Life without you would be like a fridge without a Diet Coke. Since my dear hubby and I are totally Diet Coke fans and can't have a fridge without one in, especially if a winter storm is approaching, I just knew I had to have this stamp made for us. However I did not have time to get it ordered before Valentines so I created the saying with My Digital Studio and printed it on my card. Even though the card was a bit fluffy and not one I would use for a masculine birthday, it was totally fitting for a romantic evening with my honey.