Coneflowers come in a variety of colors from white to deep purples and reds. Many of the varieties will change colors as the bloom progress in maturity, giving you a mass of shades on one plant.
If you have a sunny location in your garden, try filling it with the Coneflower. I have several new varieties on my list to purchase this fall. I'll add some more pictures when I get them!
UPDATE: I have added "Green Twister" to my garden!