One dropDownList for updating two or more fields

Basically I need one dropdown for updating two or more fields.

In the table "one" there are:

id, name, color

In table "two" there are:

id, some, others, fields, name, color

In the form realted to "two" model it is possible getting (and writing the value) of a listview populated from table "one":

$List1 = (ArrayHelper::map(One::find()->all(), 'id', 'name'));

<?= $form->field($model, 'name')->dropDownList($List1) ?>

How to get the corrisponding value "color" from table "one" as $List1 selected and write it in other field (inputfield in my case)?

<?= $form->field($model, 'color')->textInput('value' => $List1->color) ?>