How to change hamburger menu color

Go to WordPress Dashboard >> Divi >> Theme Options >> Custom CSS >> add below code snippet.

.mobile_menu_bar:before {
color: #000000;
}

If it doesn’t work, please try

.mobile_menu_bar:before {
color: #000000 !important;
}

*Replace 000000 with your own color code.

This might vary from layout to layout but should work in general.

If it doesn’t please create a ticket with your layout number and URL.