Khroma
khroma.coTrain a personal colour generator and search its combinations.
Train a personal colour generator and search its combinations.
Compare how six picker models organize colour choices.
Browse curated palettes by colour, mood, season and popularity.
Convert colours and generate data scales through a JavaScript API.
Shape multi-step colour scales with curves, locked colours and code exports.
Curated historical images and films selected for free reuse
Stockholm’s historical photographs and films linked to places
Build palettes from community choices and carry their credits into exports.
Historical pictures with use-specific licences and custom scans
Historical and cinema pictures, archive collections and vintage mood boards
Film access through participating libraries and institutions
Build colour harmonies with an RYB wheel and export palettes for design apps.
Health-history photographs, posters and illustrations in context
Spreadsheet-driven film credits with layout and timing control
Sample a foreground and background pair and copy its contrast report.
Generate programmable palettes from anchor colours and curved paths.
Apply an image’s dominant colour to its surrounding web element.
Manipulate common colour representations with a small Python interface.
Pick screen colours, adjust their values and keep small Windows palettes.
Use a curated dataset of colour names and hex values.
Sample a browser colour, inspect its element and copy an adjusted value
Shape colour transitions and copy a multi-stop CSS gradient.
Configure a standalone colour picker with swatches and opacity controls.