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K’uychi vs Scale: catalog facts
K’uychi	Scale
Best for: Designers and developers building color palettes	Best for: Designers building tint and shade scales for a UI color system
Free Free and open source under Blue Oak Model License 1.0.0.	Free Free to use in the browser.
Linux	Web
Generates lighter and darker shades from a base color Uses OKLab for perceptual uniformity All 3 strengths for K’uychi Generates lighter and darker shades from a base color Uses OKLab for perceptual uniformity Copies hexadecimal values for use in other tools	Builds a full scale from one base color Adjustable hue and saturation curves across the scale All 3 strengths for Scale Builds a full scale from one base color Adjustable hue and saturation curves across the scale Runs in the browser with nothing to install
Linux desktop application	Focused on scales only, not full multi-color palettes Little documentation on the page itself
Downloadable app	Web application
Open source	Not open source
License: BlueOak-1.0.0	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Sources for K’uychi codeberg.org/nyx_lyb3ra/kuychi Catalog checked October 8, 2026	Official website Full listing and sources Sources for Scale hihayk.github.io/scale Catalog checked September 24, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.