ShortPoint  allows you to customize the color in your elements or SharePoint themes on your site. In this article we will go through the process of adding your own Hex colors in case you want to be specific and not select the pre-defined color in  Theme Builder Color Palette customization settings.  

To start, please open Theme Builder and navigate to General Setting > Color Palette > Primary Color.

STEP 1. Enter the Hex values

Select the option where you want to add your own Hex Color Code and enter it in the search field:

STEP 2.  Select the code from the list

Once you will enter the code it will show you this color in the list, please select it and apply changes.

Now your changes to color settings has been applied.

That's all.  Now you know how to add Hex Color Code in the Theme Builder Color Palette settings.

You can find more information on how to create your own theme with color customization in SharePoint Color Palette and Themes Tool article.