🎨 提取 WebP 像素颜色Extract WebP Colour
点击 WebP 预览取色（RGB / HEX）。本地处理。Click a WebP preview to sample RGB / HEX. Processed locally.
使用说明与常见问题How-to & FAQ
「提取 WebP 像素颜色」是什么？What is the Extract WebP Colour tool?
点击 WebP 预览取色（RGB / HEX）。本地处理。Click a WebP preview to sample RGB / HEX. Processed locally.
如何使用「提取 WebP 像素颜色」？How do I use the Extract WebP Colour tool?
在「提取 WebP 像素颜色」中，在上方填写或选择所需内容，结果会实时显示在下方；所有处理都在浏览器本地完成。In the Extract WebP Colour: Fill in or choose the options above and the result appears below instantly; everything runs locally in your browser.
坐标从哪里算起？Where do the coordinates start?
左上角是 (0, 0)，x 向右增加，y 向下增加，单位是原图像素。预览缩放显示时，点击位置会换算回原图坐标，所以取到的是原图那个像素的 RGB / HEX 值。The top-left corner is (0, 0); x grows to the right and y downward, in pixels of the original image. When the preview is scaled, your click is mapped back to the original, so you get that pixel's RGB / HEX value.
读到的颜色准确吗？Are the colours exact?
WebP 文件用内置的 libwebp 解码器直接读取像素（选择文件后才加载，约 140 KB），不经过浏览器画布，所以和文件里的值完全一致；半透明像素还会显示 #rrggbbaa 和 A 值。PNG、JPG 等其他格式通过浏览器画布读取，个别浏览器的防指纹设置可能让某些值偏差 ±1。换一张图片时，之前的读数会立即清空。WebP files are read by a built-in libwebp decoder (loaded only after you choose a file, about 140 KB) instead of the browser canvas, so the values match the file exactly; semi-transparent pixels also show #rrggbbaa and the A value. Other formats such as PNG and JPG are read through the browser canvas, where some browsers' anti-fingerprinting settings can shift a value by ±1. Loading another image clears the previous reading straight away.
图片会被上传到服务器吗？Are my images uploaded?
不会。「提取 WebP 像素颜色」使用浏览器 Canvas 在本地处理图片，处理后的文件直接从你的浏览器下载。No. The Extract WebP Colour processes images locally with the browser Canvas API and the result downloads straight from your browser.
「提取 WebP 像素颜色」免费吗？需要注册吗？Is the Extract WebP Colour free? Do I need an account?
「提取 WebP 像素颜色」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The Extract WebP Colour is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.