About this combination
Combination 106 of 348 in Wada's six-volume 1933 work. A two-colour pairing of Antwarp Blue, Dull Violet Black, as documented in the original plates.
Historical context
Plate 106 of Wada's 348 anchors Antwarp Blue and Dull Violet Black in the blue family — a 2-colour grouping with a solemn, 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 — Antwarp Blue on Dull Violet Black — reaches a contrast ratio of 3.16:1, usable for large text but not body copy, so it reads best in decorative blocks rather than text pairings.