Color Palette Generator AI vs ColorBox

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.

ColorBox is a free web tool and extension for creating color systems and accessible palettes. You can adjust multiple colors in one tab and share a system as a URL or JSON file. Contrast indicators show 3:1, 4.5:1, and 7:1 levels for color sets, while HSV and OKLCH provide color-space modes. Auto Dark Mode creates an inverted set from original inputs; duplicated sets can also be edited manually. Hue progression rotates clockwise or counterclockwise. Export options include Config, Output, Tailwind, CSS, OKLCH, and Swift. The maker describes importing systems into Figma through a plugin and JSON, with custom step names and generated Paint Styles. A Sketch route uses that Figma workflow, then SVG export. The color algorithm can be consumed through NPM with exported JSON for code generation. Custom curves were described as unavailable in ColorBox at the cited time. The free plan is ad-free.