About this combination
Combination 28 of 348 in Wada's six-volume 1933 work. A two-colour pairing of Madder Brown, Deep Indigo, as documented in the original plates.
Historical context
Plate 28 of Wada's 348 anchors Madder Brown and Deep Indigo in the red family — a 2-colour grouping with a solemn, warm, 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 — Madder Brown on Deep Indigo — reaches a contrast ratio of 1.89:1, below the WCAG text-contrast floor, so it reads best in decorative blocks rather than text pairings.