Salvia Blue & Deep Indigo +1

About this combination

Combination 139 of 348 in Wada's six-volume 1933 work. A 3-colour grouping of Salvia Blue, Deep Indigo, Neutral Gray, as documented in the original plates.

Historical context

Plate 139 of Wada's 348 anchors Salvia Blue, Deep Indigo and Neutral Gray in the blue family — a 3-colour grouping with a refined, cool 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 — Deep Indigo on Neutral Gray — reaches a contrast ratio of 9.87:1, clearing the WCAG AAA bar for body text, so it holds up for text-on-colour layouts as well as decorative use.