    <!DOCTYPE html>
    <html>
    <head>
      <meta charset="UTF-8">
      <title>다양한 색상 표현 단위</title>
    </head>
    <body>
      <p style="background-color: aqua">aqua</p>
      <p style="background-color: #ffff00">#ffff00</p>
      <p style="background-color: #ff0">#ff0</p>
      <p style="background-color: rgb(0, 0, 255)">rgb0, 0, 255)</p>
      <p style="background-color: rgba(0, 0, 255, 0.7)">rgba(0, 0, 255, 0.7)</p>
      <p style="background-color: rgba(0, 0, 255, 0.3)">rgba(0, 0, 255, 0.3)</p>
    </body>
    </html>