NakulTools-v1/Color Picker from Image.html at main · nakulsh02/NakulTools-v1 · GitHub

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 <!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1" />
  <title>Color Picker from Image</title>
      <link rel="icon" href="favicon.png">
  <style>
    body {
      font-family: Arial, sans-serif;
      background: #f0f8ff;
      display: flex;
      flex-direction: column;
      align-items: center;
      padding: 20px;
    }

    h2 {
      color: #007bff;
      margin-bottom: 20px;
    }

    input[type="file"] {
      padding: 10px;
      border-radius: 6px;
      border: 1px solid #ccc;
      margin-bottom: 15px;
    }

    canvas {
      max-width: 100%;
      width: 300px;
      height: auto;
      border: 1px solid #ccc;
      margin-bottom: 20px;
    }

    .color-info {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .color-box {
      width: 40px;
      height: 40px;
      border: 2px solid #000;
      border-radius: 6px;
    }

    .color-code {
      font-weight: bold;
    }
  </style>
</head>
<body>

  <h2>Color Picker from Image</h2>

  <input type="file" id="imageInput" accept="image/*" />

  <canvas id="canvas"></canvas>

  <div class="color-info">
    <div class="color-box" id="pickedColor"></div>
    <div class="color-code" id="colorCode">Click on image</div>
  </div>

  <script>
    const imageInput = document.getElementById("imageInput");
    const canvas = document.getElementById("canvas");
    const ctx = canvas.getContext("2d");
    const pickedColor = document.getElementById("pickedColor");
    const colorCode = document.getElementById("colorCode");

    imageInput.addEventListener("change", function () {
      const file = this.files[0];
      if (!file) return;

      const reader = new FileReader();
      reader.onload = function (e) {
        const img = new Image();
        img.onload = function () {
          const scale = 300 / img.width; // scale to fit width
          const scaledWidth = 300;
          const scaledHeight = img.height * scale;

          canvas.width = scaledWidth;
          canvas.height = scaledHeight;
          ctx.drawImage(img, 0, 0, scaledWidth, scaledHeight);
        };
        img.src = e.target.result;
      };
      reader.readAsDataURL(file);
    });

    canvas.addEventListener("click", function (e) {
      const rect = canvas.getBoundingClientRect();
      const x = e.clientX - rect.left;
      const y = e.clientY - rect.top;

      const pixel = ctx.getImageData(x, y, 1, 1).data;
      const hex = rgbToHex(pixel[0], pixel[1], pixel[2]);

      pickedColor.style.backgroundColor = hex;
      colorCode.textContent = `HEX: ${hex} | RGB: (${pixel[0]}, ${pixel[1]}, ${pixel[2]})`;
    });

    function rgbToHex(r, g, b) {
      return "#" + [r, g, b].map(x => {
        const hex = x.toString(16);
        return hex.length === 1 ? "0" + hex : hex;
      }).join("");
    }
  </script>

</body>
</html>