Use tailwind in custom column

Hi I have got a bit confused how to use tailwind with in a custom column

<div>
    <span class="text-green-500">{{$getRecord()->wins}}</span>
</div>

<div>
    <span class="text-green-500">{{$getRecord()->wins}}</span>
</div>

the column works fin apart from the colour. I plan on using 2 different colours in the column. What am I missing?