The Palette Book
By JOHN YUNG
The Palette Book is a digital reference tool for the Sanzo Wada color system, providing designers with color matching and multi-format palette export on iOS.
The App DNA
What makes this app unique?
The app removes the manual friction of cross-referencing physical color dictionaries against digital design tools, allowing designers to move from inspiration to code or swatch files without manual conversion.
For Designers and artists requiring a digital reference for the Sanzo Wada color system for integration into digital design workflows.
What does it look like?
Key features
Access to 159 colors from the 1930s Japanese color classic with hex, RGB, and CMYK values.
Eyedropper tool to sample colors from photos or manual hex input, ranked by perceptual difference (ΔE).
Export palettes as HEX, CSS variables, Tailwind config, SwiftUI code, JSON, .ase, or Procreate swatches.
How much does it cost?
The app operates as a free, offline utility with no current monetization, focusing on user acquisition through a niche, high-utility design tool.
Velocity
Maintenance developmentopaqueShow more...
The app currently operates on a maintenance-level cadence, with only a single version released 23 days ago. As the app is in its infancy, there is no established trend of feature updates or recurring live operations. Future development momentum remains to be seen as the publisher has not yet shipped a follow-up build to address user feedback or introduce new functionality.
Who built it?
User Sentiment
What do users think recently?
How are ratings & reviews evolving?
Not enough recent reviews to extract reliable themes yet.
Read the full review analysisCompetition
Competitive landscape for The Palette Book
How's the Reference market?
The Palette Book occupies a specialized niche in the Reference category, providing a focused utility that avoids the ad-heavy monetization common in general-purpose color pickers.
Read the market outlookThe rivals identified
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Access the full report for freeThe Analyst's Read
Key takeaways for The Palette Book
Where is it heading?
The design reference market is increasingly favoring tools that bridge the gap between inspiration and production-ready code. The Palette Book is well-positioned for this shift, but its current lack of multi-device sync leaves it vulnerable to more integrated design platforms.
- The lack of updates since the August 2026 launch suggests a maintenance-mode posture, which may signal a lack of long-term feature expansion.
The SWOT
- Offline-first architecture ensures consistent access without connectivity dependencies
- Multi-format export capability reduces manual conversion time in design workflows
- Adding a history feature for recent color samples would improve iterative design sessions
Next best moves
Ship cloud-sync for saved palettes because it is the primary barrier to multi-device professional workflows -> increase retention
The counter-intuitive read
The Palette Book's lack of monetization is its strongest retention lever…
Read the full takeSince the last report: The Palette Book has transitioned from a general maintenance posture to a targeted development plan focused on cloud-sync to improve professional utility. This shift addresses the primary friction point for designers working across multiple devices.
Bottom line
The Palette Book succeeds as a specialized, ad-free utility for the Sanzo Wada system, but the lack of multi-device sync limits its role in professional design workflows. Investing in cloud-sync would unlock its potential as a primary reference tool for designers.
Unlock 1 critical friction, 1 market threat and the analyst’s take.
Access the full report for freeFAQ
Is The Palette Book free to use?
Does The Palette Book work offline?
What export formats does The Palette Book support?
Can I sync my palettes across devices?
Sources
- [1] App Store
Report last updated