For the yarns we sell, we offer on-line color cards in addition to the color cards by the manufacturer. The on-line color cards are a good way to compare colors but please realize that a number of factors come into play when attempting to judge color on a computer screen. How the picture was prepared by us, the impact the format (jpg for the most part) has on the graphic and the set-up of your computer screen may mean that certain colors (most notably red hues) will not be totally accurate. If true colors are an important component controlling your color selection, then we suggest you purchase a color card.