Traditional Japanese month names come from the old calendar and may differ from modern seasonal timing by one or two months. Modern January–December labels here are navigation, not a conversion of old-calendar dates. Seasons follow Japan’s weather convention: March–May spring, June–August summer, September–November autumn, December–February winter; this is not universal. NDL calendar context · Japanese season convention.

Month grouping follows the open data port's ordering: combinations 1–6 are January, and so on. The port doesn't record color order or proportions within a palette, so the compositions are illustrative.

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和田三造 · 配色総鑑. Screen colors are CMYK→sRGB digital approximations, including retained, unvalidated legacy estimates for unmatched Vol. 2 colors. Composition roles and month mappings follow the documented port method; edition mappings remain uncertain. Sources & method · Version 1 dataset (581 combinations, 330 color records) · Schema & provenance · Research context. Saved and Compare are local to this browser. Viewport-only screenshots show partial collections; complete cards are in the DOM and dataset.