Purple beans are essentially green beans disguised in a violet hued skin. They maintain the same lean cylindric shape, size and stringless seam. Underneath the purple shell is the same crisp translucent succulent green flesh and pale lime green peas. The flavor matches that of a French green bean with grassy notes and a sweet finish. And, once cooked, the violet hues fade to green, leaving the purple bean to appear as common as a green bean.