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Pinwheel vs Huetone: catalog facts
Pinwheel	Huetone
Paid $9 USD plus tax, with a 30-day free trial.	Free Free open-source web tool.
macOS	Web
OKLCH and OKLAB gradients without muddy midpoints Automated contrast testing	Uses the perceptually based LCH color space Helps keep palettes accessible across hues
macOS 15 or later only Paid after the trial	Assumes some familiarity with color spaces Aimed at palette building rather than quick color picking
Downloadable app	Web application
Closed source	Open source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 24, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.