how to change the color of the text "Open Job" Career site configuration question

Summary

how to change the color of the text "Open Job" Career site configuration question

Content

Hello all, 

We have a custom career site with white back ground due to which i cannot see the text Open jobs unless it is selected . The deliver career site has a blue background and so the font color of  "Open Jobs"  is white due to which it is clearly visible. I tried most of the tab in theme section to update the font color to some other color but nothing worked .

Please let me now if this is can be changed to another color and what is the exact navigation.