The PDF teaches you that combinations are about balance of area , not just hue. A tiny swatch of toxic yellow next to a vast field of indigo is very different from equal parts of each.
This turns a fragile PDF into a rugged, working studio tool.
The Dictionary of Color Combinations Original Japanese: 配色パターン集 (Haishoku Patān-shū) or 日本の伝統色 (Nihon no Dentō Iro) Author/Publisher: Sanzo Wada (1883–1967) — a famous Japanese artist, costume designer, and color researcher. Content: 348 color combinations based on traditional Japanese aesthetics, organized in a small, visual handbook.
Keiko, a graphic designer in Tokyo, had downloaded the official digital PDF a hundred times from academic databases. She knew the 348 classical pairings: Matcha (powdered tea) with Shiro-tsubaki (white camellia) . Beni-iro (crimson) with Kuchinashi (gardenia yellow) . They were useful, cold, precise.
If you need (e.g., for design software or translation):