One cool thing you can do to make your WordPress website look totally custom, is to change the color of a single menu link. To do this, you just have to put a single line of html code in the Menu item’s navigation label.
Go to Appearance > Menus
Find the menu item you want to change the color of
Hit the drop down arrow of the menu item to expand it, and under “Navigation Label” enter this code in front of the text:
<span style="color:#fec432">MENU ITEM TEXT</span>
Change the hex color code to whatever color you want!
Hit save changes.