An exact pixel read is useful when a palette's approximate colours are not enough. It can inspect a flat logo area, an edge or the alpha at a particular source position.
Image Pixel Colour Picker accepts x and y coordinates and returns the selected pixel's HEX, RGB and opacity values. Coordinates begin at zero.
Count from the upper left
For a 400 by 300 source, valid x positions run from 0 through 399 and y positions from 0 through 299. Entering x 400 is outside the image and produces an error.
An opaque pure blue pixel returns HEX #0000FF, RGB 0, 0, 255 and opacity 1. A fully transparent pixel reports opacity 0, even though its hidden RGB values may still exist.
The source preview is scaled for the screen. Its displayed width is not the coordinate range you should enter. Coordinates refer to decoded source pixels after supported orientation correction.
One pixel is not a whole region
An edge can contain blended or antialiased colours that differ from the main fill nearby. Move to a representative interior pixel when you want the flat colour of a logo or icon.
A JPEG can contain compression variation, so neighbouring pixels in what looks like one solid area may not have identical values. The picker reports what is present, not what the designer originally intended.
This operation does not calculate colour contrast, inspect a monitor profile or replace an approved brand specification. It reads one source coordinate.
Keep the coordinate with the result if another person needs to reproduce the inspection. A colour value without its location can be hard to explain when the image contains many similar shades.