How Color picker (eyedropper) works
Color picker (eyedropper) lets you drop a photo or screenshot and click anywhere on it to read that exact pixel's color, right in your browser: hex, RGB and HSL values appear instantly, a magnifier shows the pixel neighborhood so you can aim precisely, and every color you pick is kept in a history strip you can click back through. The image never leaves your device.
This is the inverse of a palette generator: instead of extracting a representative set of colors from a whole image, it lets you target one exact spot, which is what you need when you already know which pixel matters (matching a brand color from a screenshot, sampling a specific swatch photo, checking what shade a UI element actually renders as). Pair it with the color converter for CMYK/HSV values, or color scheme for building a palette around what you picked.