I am trying to use Ajax and jQuery to post data to a custom post type. The title field works as is standard wordpress field but the color field does not. I also tried replacing ‘color’ with the name of the ACF itself like ‘field_5ec63bc5b6fe0’ but that also does not work.

$('.submit-color').on('click', function (e) {
    e.preventDefault();
    var newColor = {
        'title': $( '.title' ).val(),
        'color': $( '.color' ).val(),
        'status': 'private'
    }
    $.ajax({
            url: myData.root_url + '/wp-json/wp/v2/color/',
            type: 'POST',
            data: newColor,
            beforeSend: (xhr) => {
            xhr.setRequestHeader('X-WP-Nonce', myData.nonce);
            }
        })
        .done(function (data) {
            console.log(data);

        })
        .fail(function (jqXHR, textStatus, errorThrown) {
            console.log(textStatus + ': ' + errorThrown);
            console.warn(jqXHR.responseText);
        });
})