iro.js
iro.js.orgBuild a JavaScript colour picker from modular interface controls.
Build a JavaScript colour picker from modular interface controls.
Choose scientific colour maps and inspect or adapt them in Python.
Use continuous and categorical colour maps in Python visualizations.
Generate scientific colour scales with a controlled path from black to white.
Try a palette on logos, interfaces, posters and patterns.
Preview palette ideas on objects, text and sampled image colours.
Look up colour values, compare shades and prepare interface palettes.
Find replacement colours that meet a chosen contrast target.
Shape-led digital painting with colour jitter and lasso fills
KDE raster drawing with selective colour replacement and close-up editing
Generate a palette, pull colours from an image and export reusable swatches.
Choose between reversible groups, merged profiles and fused meshes
Create structured assessments with a question bank, controlled delivery and reviewer-managed grading.
Evaluate work samples and job simulations, then review the responses behind assessment scores.
Choose a starting colour and explore a related scheme.
Create device-specific colour profiles and check display consistency.
Connect browser colour picking with shareable palettes and scales.
Parse CSS colour strings and build adjusted values in JavaScript.
Explore photograph-based palettes with copyable hex colours and related combinations.
Add a configurable colour picker to ordinary web input fields.
Build a resizable colour picker with optional fields and alpha controls.
Choose a React colour picker or compose one from building blocks.
Fold imported dielines into packaging renders and animations.