JSFiddle - React, Tailwind, and code Playground

HTML

<canvas id='cn'></canvas>

JavaScript

var canva = document.getElementById('cn'),
      ctx = canva.getContext('2d');
 
  canva.width = 300;
  canva.height = 300;

  ctx.fillStyle = 'hsv(132,34,98)';  
  ctx.fillRect(0, 0, 300, 300);