Change of font color

In the screenshot attach the home,opportunity and contact flex i have choosen as button I am able to change there background color but how can I cange there font color.

@srijan.vaidya, is this anything related to UiPath or a generic HTML/CSS Query?

In uipath apps is there any property related to change of font color

Are these labels or is this the header of a table? Either way, this should help: