Widget Text Needs to be White

I need to change the color to white on the title of a widget that I have in my footer. I looked at the source code and note that it says H4 before and after the text. However, when I change the color of H4 in the global typography, it does not change the color of this widget text. I also found the area for the Widget Header and changed it to white but it also is not changing the text to white on the widget. I see the below when I view source code but when I go into CSS, it will not bring it up when I search. Here is what the code currently says: Members of: