I've noticed that a number of online fabric sites have a color-matching option. They show a little grid of colors, and if you click on one of the colors, it pulls up all the fabrics that (supposedly) have that color in it.
I have a lot of doubts about how well that would work... in reality, we take into account the visual "texture" of a fabric, not just the color.
My question is: have any of you made use of those online color matchers? How well do you think it works?