Free online tool for generating random HEX, RGB, and HSL colors instantly
Book formatting software for self-publishers
Stage
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Founded
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Based in
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DE
Pricing model
Free
Paid
Pricing
Not given
One-time purchase price to be announced before launch. Without a license, the software works with basic features indefinitely but exports carry a watermark.
Key features
Instant random color generation with spacebar shortcut
HEX, RGB, and HSL color code display with 1-click copy
2 to 10 color harmonized palette generator with smart color locking
Export palettes to CSS Variables, SVG, PNG, and shareable URLs
WCAG 2.1 contrast checker with relative luminance calculation
Color of the Day inspiration
Local-first saved palettes storage with zero tracking
Browser sidepanel for inspecting colors and testing contrast
Color Eye Quiz mini-game to test designer skills
Supports Windows, macOS and Linux
Accepts Word and Markdown manuscripts
Generates print-ready PDF for KDP and IngramSpark
Creates EPUB 3 for ebook stores
Automatic layout of running heads and chapter openers
Professional typography with correct quotation marks and dashes
German language typography support
Works offline without requiring an account
Custom theme saving in licensed version
What makes it different
0-latency generation with instant spacebar triggering
Exact conversions across HEX, RGB, HSL with automated WCAG 2.1 contrast metrics
Hyper-focused neutral UI allowing generated hues to take center stage
Free forever with no sign-up required
Runs natively on Windows, macOS and Linux while the best-known alternative only runs on Mac
Professional typography handling for both English and German
Offline desktop app with no account or cloud dependency required
One-time purchase model instead of subscription
Includes free tools for KDP formatting and quote/dash fixing
Kernsetzer