I found the thread that had lots of "purple" suggestions and got lots of good info there. Thanks! Now I'm trying to decide between some other colors. I want to make a border along the front of my island bed. The bed will receive full sun all day so I need ones that will hold their color in the sun. I want to use the following colors: red/burgundy, bright green, and yellow/orange. (I will have the burgundy and green alternating along the front and the orange will sit just above them in the middle, kind of forming and upside-down V.) Here is what I am thinking of so far:

red/burgundy: sparkling burgundy, amethyst mist, plum pudding (The last two are more purple though, yes? Is there something that is brighter, like almost a dark pink?)

bright green: lime rickey, key lime pie

yellow/orange: peach flambe, marmalade, amber waves

In your experience, which are the best? Do any others in these color ranges come to mind? I'm looking for sun tolerance, a tighter habit, and nice flowers is a plus.

As a side note, which sun-loving perennials do you like to pair with heuchera?

Thanks for any help you can offer!