The short response is not: the color numeric is intended as a way to permit the user to choose a color at runtime to apply to some element (or to display a color on the UIR...) the only textual element of this control is its label, which is not permitted to edit at runtime.
But keeping in mind the other question you posted today, it should be better that you give us some informations more about the type of effect you want to add to your UIR, so that sombody can suggest a solution to your problem. Consider that the only controls that permit you to edit some text at runtime are string and textbox controls, which can be customized in a couple of ways and can be added to a color numeric to render some particular effect, but it's difficult to suggest you a solution without knowing your needs.
