Color Sampler
This tool lets you sample colours from images, analyse pixel distributions, and extract dominant colour palettes from selected areas. Upload an image and draw a region to calculate its width, height, total pixel count, and the frequency distribution of HEX colours within the selection. Ideal for designers, developers, digital artists, and researchers working with precise image colour data.
Instructions
Upload an image using the form below. Once the image loads, click and drag across the canvas to select a region. The tool will automatically analyse the pixels inside the selection and display the selection size, pixel count, and colour frequency distribution for the chosen area.
Workspace
Upload an image and analyze its pixel data.
No images in workspace yet.
What Is a Color Sampler?
A color sampler is a tool that allows users to inspect and analyse the colour data contained within a digital image. Every image is made up of thousands or millions of individual pixels, each representing a specific colour value. By analysing these pixels, designers and developers can better understand how colours are distributed across an image.
Color sampling tools are commonly used in graphic design, photography, digital art, and web development to measure image composition, extract colour palettes, and analyse visual patterns.
How This Color Sampling Tool Works
When you upload an image, it is rendered onto a secure HTML canvas in your browser. Selecting a region on the canvas allows the tool to scan every pixel within that area and retrieve its RGB and HEX colour values. The tool then calculates the dimensions of the selected region, the total number of pixels, and the frequency of each HEX colour present.
This makes it possible to quickly identify dominant colours, analyse gradients, and study colour distribution within specific parts of an image.
Why Color Sampling Is Useful
Analysing pixel data can help designers and developers make better decisions when working with images. For example, it can be used to identify dominant colours for palette creation, inspect image quality, evaluate gradients, or study visual balance within digital artwork.
Developers may also use pixel analysis tools when building image-processing workflows, testing graphics algorithms, or analysing colour data for machine learning and computer vision experiments.
Image Privacy and Temporary Storage
Uploaded images are stored temporarily on the server so the analysis tool can process them. All files are automatically deleted after 24 hours, ensuring that images are not stored permanently and helping protect user privacy.