Contact Form opacity

I would like to darken the fields of the Contact component (background and borders), which file should I update?

marinolab1
Hi
Add this code in custom css and change the color codes as per needs


.view-contact .form-control, .view-contact .inputbox {
    color: #3F3836;
    background-color: #b4a7a7;
    border: 1px solid #4e4646;}

Regards