Color Palette Generator AI vs ColorUI Prompt Palette Studio

Color Palette Generator AI creates 13-color brand systems from text prompts and extracts dominant colors from images such as photos, logos, screenshots and product images. Image extraction uses k-means clustering. Users can lock selected colors, change hex values and regenerate the rest of a palette around those choices. The tool checks text and background combinations against WCAG 2.1 AA and automatically corrects failing pairs. Export options include CSS custom properties, Tailwind configuration, W3C design tokens JSON and shadcn/ui themes. Ready-made configurations are available for Claude Code, Cursor, Codex and generic coding agents. Saved palettes receive permanent links with preview images and can be remixed. The free API supports generation, image extraction and programmatic palette retrieval. The Free plan is free and includes unlimited generations, every export format, shareable links and API access, with no account required. Accepted image formats are JPEG, PNG, WebP, GIF and SVG up to 5MB; at least three extracted colors are needed to make a system. Uploaded images are processed for extraction and not kept, while saved palettes are stored.

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.