How can i change the color from the Contactform?

Hey dodo8!

Please add following code to Quick CSS in Enfold theme options under General Styling tab

#top div .av-light-form .input-text, #top div .av-light-form input[type='text'], #top div .av-light-form input[type='input'], #top div .av-light-form input[type='password'], #top div .av-light-form input[type='email'], #top div .av-light-form input[type='number'], #top div .av-light-form input[type='url'], #top div .av-light-form input[type='tel'], #top div .av-light-form input[type='search'], #top div .av-light-form textarea, #top div .av-light-form select, div div .av-light-form .button {
    border-color: #F5F5F0!important;
}

Best regards,
Yigit