display the field labels in different color than data color in the List Page

I would click on the toolbar button that reveals the table grid lines. Then right click on your field labels, select cell properties and choose your new color. If all of your labels fall in the same row or column, you can also check apply to whole row or whole column.
Hope this helps.

Thanks for the reply. The instruction you have mentioned is to change the background color of cells, I need to change the color of the label fonts.

It depends on what grid layout do you use. In horizontal mode you can set color via Style Editor:

Grid->Text color->Header
In vertical mode you need to proceed to Visual Editor, select the label and then change color via toolbar icon with palette.