I use Hallmark card making software to print my sentiments and clip art images for my cards. It seemed like every time I wanted to print some text in a color to coordinate with the paper I was using, it would take me multiple tries to get the right shade. So, today, I finally made myself a chart of the default colors available in the software. I can customize them too if they're not dark enough, etc.
Right after purchasing my Promarkers, I made this chart to help me select colors. I just set up a page in Excel and colored the boxes beside each name. I did one for my Stampin' Up markers too.
Being able to see what the colors of the printer ink look like, I was able to get a pretty close match to some Martha Stewart ink that I used to stamp the flowers on this simple card. The stamps are SU, God's Beauty set and I used Old Olive cardstock.
Dawn Griffith had a card like this on her blog this morning. It's a good example of how a simple design can be used for a variety of cards by just changing the sentiment you choose.