ColorBrew vs ColorUI Prompt Palette Studio

ColorBrew is a color studio for design, code, and collaboration, available on the web and as a browser extension. Its AI palette tool creates palettes from text descriptions, with controls for mood and palette size. Users can upload images to extract colors, preview them in design layouts, and export palettes in formats including PDF, JPG, CSS, Tailwind, JSON, and design tokens. Other tools cover gradients, color harmonies, contrast checking, image extraction, and saved palettes. The contrast checker calculates ratios and reports whether combinations pass WCAG AA and AAA standards. Users can manage and share saved palettes. The Chrome extension adds new-tab palettes, hex copying, design quotes, and a color-matching game; its store listing says it has no ads or tracking and handles website content. ColorBrew describes its audience as designers, developers, and artists. A Figma extension is listed as coming soon. The free plan costs nothing, and the site says everything it currently offers is free.

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.