JSFiddle - React, Tailwind, and code Playground

HTML

<form>
        <select name="select1" id="select1">
            <option value="1">account 001</option>
            <option value="2">account 002</option>
            <option value="3">blue 001</option>
        </select>
        <input type="text" name="text1" id="text1">
    </form>

JavaScript

$(function() {
        $('#text1').hide();
        $('#select1').on('change', function(event) {
            var opt = this.options[ this.selectedIndex ];
            var picked_blue = $(opt).text().match(/blue/i);
            if(picked_blue) {
                $('#text1').show();
            } else {
                $('#text1').hide();
            }
        });
    });