Some notes gathered over a long period of using solids from many sources...
Color cards are good IF you are sharp enough to judge from a 1" square that is half pasted to cardboard...it's not easy and I have a very keen eye for color. Also be aware that the dye lot of the actual fabric received will not match the dye lot used to make the color card so it can be a c**p shoot anyway. I have a Kona card and have been disappointed more frequently than not. I stopped using it a couple years ago.
Not all solids are broadcloth and not all broadcloth has the same hand as Kona solids. Moda Bella is a broadcloth, but with a softer hand and a slight glow to the surface. Kona also has a softer hand after it is washed, btw.
Two solid lines with a hand very similar to regular quilting fabric by the same manufacturer are RJR's Supreme Solids (my current favorite)
http://www.rjrfabrics.com/fabrics/co...packageID=1007 and P&B Color Spectrum
http://www.pbtex.com/html/colorspectrum.html (I believe this is what borntohandquilt prefers for her wholecloth quilts, but I could be wrong).
Despite the differences in monitors, I have found much more often than not, if two colors from a manufacturer's website "go", odds are great that they will coordinate in person as well. They may be slightly different from what you see online, but relative to each other, they will most likely be fine. It's much trickier when using multiple manufacturers or even multiple lines. Safest way is to buy in person, of course.
Hope at least some of that helps you.
