Your All-in-One
Online Toolbox

The screenshot is drawn to a canvas so its pixels can be read directly. A k-means clustering algorithm with k set to 8 then groups those pixels into eight colour clusters, running eighteen iterations: each pixel is assigned to the nearest centre, every centre moves to the average of its pixels, and the process repeats until they settle. The eight resulting centres form the palette, shown as swatches with hex codes.

A second pass looks at layout. The image is divided into horizontal bands and the average colour of each band is measured, which distinguishes the typically darker or branded strip at the top from the body of the page below. The topmost bands inform the navigation colour, while the remaining bands feed the background and accent choices.

Those colours are then written into a hand-built template. Your chosen page type selects the structure, with a landing page producing a navigation bar, hero, features grid, stats row and footer, while other templates use their own arrangements. The framework toggle decides whether styling is emitted as a vanilla CSS stylesheet or as Tailwind utility classes, and the JavaScript option adds basic interaction code.

The finished markup renders in a sandboxed iframe.

Upload a screenshot of an application with a dark navy sidebar, a near-white content area and a single teal accent on its primary buttons. The clustering returns eight centres, and because clusters are weighted by how many pixels fall into them, the large near-white content region and the navy chrome dominate, while the teal appears as a smaller but distinct cluster. The swatch row shows all eight with their hex codes, and clicking one copies it.

The band analysis reads the top strip as dark, so navigation is styled in the navy family while the page background takes the light value.

Now select the landing page template with vanilla CSS. The generated file contains a navigation bar, a hero section with a heading and two buttons, a three-column features grid, a four-column stats row and a multi-column footer, all styled with the extracted colours. Switch the framework toggle to Tailwind and the same structure is emitted with utility classes instead of a stylesheet.

What you will not get is the sidebar layout from your screenshot. The tool matched your colours onto a landing page template, because the structure comes from your template choice rather than from the image.

Be clear about what this produces. It is not a pixel-perfect reconstruction of your screenshot, and it does not read the layout, the typography or the text of the image. It extracts a colour scheme and applies it to one of four hand-written templates, so the value is a colour-consistent, structurally complete starting point in seconds, not a cloned design.

Use it accordingly. Good workflows include taking the palette from a brand screenshot and scaffolding a landing page around it, generating a starting stylesheet whose colours already match an existing product, or copying just the swatches.

Check contrast before you build on the output. Extracted colours are whatever dominated the image, and a pairing that works as a small accent in the original can fail badly as body text on a background. Verify text against its background meets the 4.5 to 1 ratio that accessibility guidelines ask for, and adjust the generated values where it does not.

There is also a legal dimension. Copying the visual design of a site you do not own can infringe copyright or trade dress, so use the tool on your own work, on material you have permission to use, or for private study.