Color palettes and gradients for apps and AI agents
Palettes, color scales and gradient generators for a site's theme. 8 sources compared on price, license terms and how an agent connects. Read on official pages, checked Oct 10, 2026.
Tick the sources you want to use, then Copy for your agent to paste their license rules and API details into your prompt.
| Pick for your agent | Source | Gid Score | Downloads | Change | Stars | Agents asked | Price | License | Agent access |
|---|---|---|---|---|---|---|---|---|---|
| Radix Colors Color palettes and gradients · Open-source color system: 12-step accessible scales with alpha, dark mode and P3 variants, shipped as CSS/JS … |
42 | 327K3.1M15M | down 54.0%down 19.7%— | 1,716 | — | Free | Commercial OK No credit | npm | |
| uiGradients Color palettes and gradients · Community collection of multi-color gradients; all data is in one gradients.json file in the GitHub repo, plu… gradientcolorful |
28 | ——— | ——— | 6,031 | — | Free | Commercial OK Credit required | Download | |
| ColorBox (Lyft) Color palettes and gradients · Browser generator for multi-step color scales from hue, saturation and brightness curves; exports Tailwind, O… |
— | ——— | ——— | — | — | Free | Commercial OK | Download | |
| Colormind Color palettes and gradients · AI palette generator trained on photos, movies and art, with a simple JSON HTTP API that returns 5-color pale… |
— | ——— | ——— | — | — | Free | Commercial: conditions | API | |
| Coolors Color palettes and gradients · Online palette generator and palette library; build, save and export color palettes. |
— | ——— | ——— | — | — | Free tier | Commercial OK No credit No AI training | API | |
| Realtime Colors Color palettes and gradients · Browser tool that applies your text, background, primary and accent colors and fonts to a sample website; exp… |
— | ——— | ——— | — | — | Free | Commercial OK No credit | Download | |
| Color Hunt Color palettes and gradients · Curated gallery of 4-color palettes you can browse by tag, popularity or new; copy hex codes, create your own. |
— | ——— | ——— | — | — | Free | Commercial: unclear | Download | |
| Huemint Color palettes and gradients · Machine-learning color palette generator that previews palettes on brand, website and illustration mockups. |
— | ——— | ——— | — | — | Free | Commercial: unclear | Download |
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Can you use them commercially?
Is Colormind free for commercial use? Is Coolors free for commercial use? Is Radix Colors free for commercial use? Is ColorBox (Lyft) free for commercial use? Is Realtime Colors free for commercial use? Is uiGradients free for commercial use?
Other categories
Stock photos and images Stock video Open and public-domain media Illustrations AI image generators AI video generators and platforms Music libraries Sound effects AI music and sound generators Voiceover (text-to-speech) AI presenters and avatars 3D models AI 3D model generators 2D game art and sprites Textures, materials and HDRIs Animation and motion capture Icons Fonts UI animation (Lottie, Rive) Emoji Avatars and placeholders UI kits and website templates Backgrounds, patterns and shapes 3D and isometric illustrations Mockups and device frames Company and technology logos Placeholder images, data and text Favicons and social preview images Video assembly and rendering Publishing
Not legal advice. Each source's page links the license we read; check it before you ship.