Help needed changing drop-down menu color

Hi! We would like to change the drop-down menu background color of the drop-down menus that appear in the navigation menu. Right now, the background color is a dark pink. You can see it here: https://www.birthandbeauty.com Hover over "Pricing" and you'll see dark pink background drop-down menu appear. Is there a configuration setting to control that color or is custom CSS needed? Thanks! Peace...