React Js Convert Hex to RGB Color

<!DOCTYPE html>
<html>
  <head>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.14.0/umd/react.development.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.14.0/umd/react-dom.development.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/babel-standalone/6.26.0/babel.min.js"></script>
  </head>
  <body>
    <div id="app"></div>
    <script type="text/babel">
      const { useState } = React;

function App() {
        const [r, setR] = useState(110);
        const [g, setG] = useState(169);
        const [b, setB] = useState(114);

const rgbToHex = (r, g, b) => {
          let hex = ((r << 16) | (g << 8) | b).toString(16);
          return "#" + "0".repeat(6 - hex.length) + hex;
        };

const handleInputChange = (e) => {
          const value = parseInt(e.target.value);
          const name = e.target.name;

if (!isNaN(value)) {
            if (name === "r") setR(value);
            else if (name === "g") setG(value);
            else if (name === "b") setB(value);
          }
        };

return (
          <div className="container">
            <h4 className="title">React Js Convert RGB Color to Hex Color</h4>
            <div className="color-inputs">
              <label>
                R:
                <input
                  type="number"
                  name="r"
                  value={r}
                  min="0"
                  max="255"
                  onChange={handleInputChange}
                />
              </label>
              <label>
                G:
                <input
                  type="number"
                  name="g"
                  value={g}
                  min="0"
                  max="255"
                  onChange={handleInputChange}
                />
              </label>
              <label>
                B:
                <input
                  type="number"
                  name="b"
                  value={b}
                  min="0"
                  max="255"
                  onChange={handleInputChange}
                />
              </label>
            </div>
            <p className="rgb-text">
              RGB Color: rgb({r}, {g}, {b})
            </p>
            <div
              className="color-box"
              style={{ backgroundColor: rgbToHex(r, g, b) }}
            >
              Hexa Color: {rgbToHex(r, g, b)}
            </div>
          </div>
        );
      }

ReactDOM.render(<App />, document.getElementById("app"));
    </script>
    <style>
      .container {
        margin: 0 auto;
        width: 500px;
        text-align: center;
        box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.12),
          0 2px 4px 0 rgba(0, 0, 0, 0.24);
        padding: 20px;
        display: flex;
        flex-direction: column;
        align-items: center;
        height: 100vh;
      }
      .title {
        font-size: 24px;
        font-weight: bold;
        margin-bottom: 16px;
      }

.rgb-text {
        font-size: 18px;
        margin-bottom: 16px;
      }

.color-box {
        width: 200px;
        height: 200px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 18px;
        font-weight: bold;
        color: #fff;
        text-align: center;
      }

.color-inputs {
        display: flex;
        justify-content: center;
        margin-bottom: 16px;
      }

.color-inputs label {
        margin: 0 8px;
      }

/* Additional styles for better visual appeal */
      .color-box {
        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
        border-radius: 8px;
      }
    </style>
  </body>
</html>