JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="//unpkg.com/bootstrap@4.3.1/dist/css/bootstrap.min.css">
<link rel="stylesheet" href="//unpkg.com/bootstrap-vue@2.0.4/dist/bootstrap-vue.css">
<script src="//unpkg.com/babel-polyfill/dist/polyfill.min.js"></script>
<script src="//unpkg.com/vue@2.6.10/dist/vue.min.js"></script>
<script src="//unpkg.com/bootstrap-vue@2.0.4/dist/bootstrap-vue.js"></script>
<div id="app">
  <div>
    <b-dropdown text="Dropdown">
      <b-dropdown-form>
          <b-form-group label="Email" label-for="dropdown-form-color" @submit.stop.prevent>
            <b-form-input v-model="color"
              id="dropdown-form-color"
              type="color"/>
          </b-form-group>
      </b-dropdown-form>
    </b-dropdown>
    selected color: {{ color }}
  </div>
</div>

CSS

body { padding: 1rem; }

JavaScript

window.onload = () => {
  new Vue({
    el: '#app',
    data() {
      return {
        color: '#ff0000',
      }
    },
  })
}