how to change color of label

Hi, how do i change the color of my label in the form. For example if have only two labels

previous address(i want this color red)

present address(i want this color blue)




   <?= $form->field($model, 'previousaddress') ?>


  <?= $form->field($model, 'presentaddress') ?>




Setting css?




<?= $form->field($model, 'previousaddress', ['labelOptions'=>['style'=>'color:yellow']] ) ?>



Thank you so much,can you help me please where I could find this in the yii2 references,in what section ?


['labelOptions'=>['style'=>'color:yellow']

http://www.yiiframework.com/doc-2.0/yii-widgets-activefield.html

Thank you :)