Colormind vs ColorUI Prompt Palette Studio

Colormind is a free color-palette generator available on the web and through an API. Its deep-learning system can learn color styles from photographs, movies, and popular art. The generator creates palettes randomly or around a chosen starting color, while locked colors stay fixed as other colors change. You can also upload an image to extract a palette. Different datasets load each day, combining Adobe Color data with hand-picked palettes from Dribbble. A Bootstrap preview page shows palettes applied to a demo landing page. Colormind provides a REST API that exposes the features available on Colormind.io. The default and ui models are always available; other models change daily. Models refresh at 08:00 UTC, with the service down for 30 seconds during loading. Personal and non-commercial API use costs nothing. Commercial application use requires contacting Colormind by email, and no commercial price is listed.

ColorUI Prompt Palette Studio turns natural-language design requests into color palettes and explains each color's role. It maps mood, temperature and context to OKLCH properties, arranging colors as primary brand tones, secondary accents and neutral backgrounds. You can give it color names or exact hex codes, lock those choices and generate matching tones around them. Exports include CSS custom properties, W3C design tokens and Tailwind themes, alongside SCSS, JSON, Style Dictionary, Swift UIColor and Android XML. The public API needs no signup or API key, supports CORS and allows 60 requests per minute; it accepts prompt-based generation, harmony rules or random mode, with random counts from 2 to 8. Prompts are evaluated statelessly and are not stored or tied to personal accounts. Palettes may be used personally or commercially without attribution. Integrations include Figma, VS Code, CLI, GitHub, Raycast and MCP. ColorUI also lists image color extraction, an accessibility checker and seven harmony modes. The free plan is available without signup.