Image Colour Picker takes an exact colour out of a picture. As you move the mouse, a 120 px circular loupe follows the cursor and magnifies the 15×15 pixels around it with the centre cell highlighted, so a click on a gradient or an edge does not land in the wrong place. Clicking writes the value to “Current colour” and copies the HEX automatically, and the rgb() and hsl() forms are listed too. When the image loads it is also scaled to 128 px wide and clustered, producing eight dominant colours drawn as a band whose widths follow their share of the pixels. All processing is local to the browser.

Unlike “Colour Converter”, the colours here come from image pixels; unlike “Image Histogram”, it is about particular values rather than the light-and-dark distribution.

1. 01Upload one imagesingle-image mode. The picture is drawn onto the sampling canvas (a long edge over 2,048 px is scaled down to 2,048 first).
2. 02Move to inspectas the mouse moves, the loupe follows the cursor and flips to the other side near an edge; the HEX value is shown live under the loupe.
3. 03Click to picka single click makes that pixel the “Current colour” and copies the HEX to the clipboard; the right-hand panel shows HEX / RGB / HSL, each with its own “Copy” button.
4. 04Use the dominant palettethe eight swatches under “Dominant colour palette” are laid out as a band by pixel share — clicking one copies it too — and “Pick history” keeps the last 16 unique colours.

HEX goes straight to the clipboard

The eight dominant colours come from a 128 px thumbnail

Tiny pixels get merged, so a pick is slightly averaged

Click on the sky in the image

HEX `#4A90D9`, `rgb(74, 144, 217)`, `hsl(211, 65%, 57%)`

Load a brand poster

The widest section of the band is the poster's main colour, the rest follow by area

A large image with a 6,000 px long edge

The sampling canvas shrinks to 2,048 px

Supported input

JPG / PNG / WebP / GIF / BMP / AVIF / HEIC; one image at a time

Sampling resolution

the canvas long edge caps at 2,048 px, so very large images are sampled from the scaled version rather than pixel by pixel

Transparent pixels

alpha is ignored; transparent areas are read as the RGB they composite to on the canvas

Dominant colour count

fixed at eight, and the number cannot be changed nor the background excluded

What it does not do

colour format conversion or palette generation (“Colour Converter”), palette files (ASE / GPL) or sampling outside the screen

The image is drawn to a canvas inside your browser for sampling and is never uploaded to any server; the clipboard is touched only when you click.