Chromos vs ColorUI Prompt Palette Studio

Chromos is a web-based tool for creating color palettes from prompts, photos, moods, and documents, with explanations of the emotional reasoning behind its choices. Palette Playground turns prompts, photos, and moods into color sets, while an image picker extracts colors from images. Users can refine a palette by locking selected colors, regenerating the rest, or adjusting individual shades. Isla, its conversational color assistant, helps refine palettes and change their emotional direction. Accessibility tools show contrast ratios and scores, check WCAG AA and AAA, and support ADA optimization. Palettes export as CSS, SCSS, or JSON, and users can copy hex codes. The site describes responsive use on desktop, tablet, and mobile, with projects and palettes syncing across devices. Chromos is currently built for individual designers; enterprise and team solutions are in process. The maker says palettes may be used for client presentations, brand systems, and product design. The Free plan is free, billed Forever, and includes 1 project and 5 palettes. Pro costs $20 a month, billed per month, with unlimited projects and palettes.

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.