1. From the drop-down menu in the upper, right-hand corner, select Core > Settings > Web App Style
  2. Within Color Palette, you can see the Hexadecimal Code being Used as your Primary and Secondary Colors, copy this HEX code and input it where you will be using that color code
Note: The same is true within a onMessage page, if you navigate to the Style being used on the page you should be able to see the HEX color Codes used within the Style, and Content Type.​