In this example, I’m going to create a color-picker custom control for Nintex Forms On Premises 2013. The color-picker control implements the HTML5 color input and illustrates how you can bind your own control using the Nintex.Forms.Sdk.dll to Microsoft SharePoint with Nintex Forms. It also demonstrates how to store and retrieve data to and from your control.
For the complete post, see the Nintex Community.