On an ecommerce category page, what are some effective ways to expose multiple colorways/colors of a particular product?
Standard practice seems to be a scale. On the one end you have the product shown only once, with a simple textual hint, eg: "More Colors". On the other end you have each color shown as if it was a different product. In between, you often see small "swatches" that upon hover will change the image.
Obviously you have trade-offs with these solutions. Are there some particularly effective methods that limit the trade-offs?