About this combination
Combination 48 of 348 in Wada's six-volume 1933 work. A two-colour pairing of Rosolanc Purple, Helvetia Blue, as documented in the original plates.
Historical context
Plate 48 of Wada's 348 anchors Rosolanc Purple and Helvetia Blue in the pink family — a 2-colour grouping with a refined, cool, austere character, recorded in the Showa-era volumes of Sanzo Wada's 1933 Dictionary of Color Combinations, where these shikisai names have sat in the public domain for generations. Its strongest pairing — Rosolanc Purple on Helvetia Blue — reaches a contrast ratio of 1.38:1, below the WCAG text-contrast floor, so it reads best in decorative blocks rather than text pairings.