Background color menu

Hello: I need help with the background color of the button in the main menu when I entered the sub-menu page. When you enter the sub menu "carro" the "contacto" button is not turquoise color (I send picture comparison). Thank you. https://lh3.googleusercontent.com/-peYt6ndoIv0/ViOMK-dgTxI/AAAAAAAAApc/r8E4HzJhV9c/s851-Ic42/Sin-t%2525C3%2525ADtulo-3.jpg