While the original is an analog book, several digital "companions" and document previews are available to help designers use the palettes in modern workflows:
Here are three classic examples from Wada’s dictionary: japanese dictionary of color combinations pdf top
The Japanese Dictionary of Color Combinations remains a top resource because it treats color not as a mathematical formula, but as an emotional experience. Whether you access it via PDF or hardcover, Sanzo Wada’s work is a masterclass in balancing harmony and contrast. While the original is an analog book, several