random css when looping

laravel css

<?php $colors = ['bg-aqua','bg-green','bg-yellow','bg-red']; ?>

@foreach($dataGudang as $gudang)
	<div class="col-lg-4 col-xs-8">
		<!-- small box -->
		<div class="small-box {{ $colors[rand(0,3)] }}">
		</div>
	</div>
@endforeach