ColorBox vs Paletto Studio

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.

Paletto Studio is a free web-based color tool for surface pattern designers. It can extract colors from a photo, refine them with harmony tools, and preview them on a design in the browser. Users can also create palettes from pasted hex codes or colors in their library. The palette tool accepts PNG, JPG, and WEBP images up to 50MB. Recoloring can start from hex codes, a library palette, or a newly created one, and palettes can be exported for Photoshop, Procreate, and more. Palette and recolor tools work without an account. Signing in lets users save palettes, organize them into collections, and load them into the tools. Uploaded images are processed in the browser and are not sent to Paletto Studio’s servers or third parties. Users own their designs and palettes, but the terms do not guarantee that exported colors will match physical print output; monitor calibration and substrate variation can affect it. The site uses a session cookie to keep users signed in and says it does not use advertising or tracking cookies.