A contact form plugin would be needed to set up a contact form. We recommend the following:
Link to plugin page: https://wordpress.org/plugins/wpforms-lite/
This is a drag & drop WordPress form builder. You can also create forms easily by using the templates built into the WPForms.
Kale comes with built-in support for WPForms. In order to match the styling of your WPForms contact form to the theme, simply go to Appearance > Customize > WPForms (make sure the plugin is installed and active) and toggle on the option Override WPForms Styling?
Contact Form 7
Link to plugin page: https://wordpress.org/plugins/contact-form-7/
Contact Form 7 is super easy to use. For details on how to set up your contact form, you can visit the plugin website at https://contactform7.com/docs/
In order to match the styling of the contact forms with the theme, make sure to use class:form-control for each field. For example:
[text* full-name class:form-control placeholder "Full Name"]
You can see the code for our demo contact form here.