Haishoku Sōkan B-hen — July (文月) no. 4

• ground
  Sulphur Yellow蒸栗色 #f5ecc2oklch(94.0% 0.055 97.3)rgb(245, 236, 194)
• accent
  Grape Green— (no Japanese name in data) #a2a865oklch(71.1% 0.090 112.9)rgb(162, 168, 101)
• type
  Sea Green若竹色 #00b49boklch(68.9% 0.127 178.0)rgb(0, 180, 155)

Highest-contrast pair: Sulphur Yellow on Sea Green, 2.21:1 (decorative only; add a neutral for text).

/* Sanzo Wada — Haishoku Sōkan B-hen — July (文月) no. 4 */
:root {
  --wada-sulphur-yellow: #f5ecc2; /* oklch(94.0% 0.055 97.3) · 蒸栗色 */
  --wada-sea-green: #00b49b; /* oklch(68.9% 0.127 178.0) · 若竹色 */
  --wada-grape-green: #a2a865; /* oklch(71.1% 0.090 112.9) */

  /* suggested roles */
  --ground: var(--wada-sulphur-yellow);
  --type: var(--wada-sea-green);
  --accent: var(--wada-grape-green);
}

/* OKLCH variant */
:root {
  --wada-sulphur-yellow: oklch(94.0% 0.055 97.3);
  --wada-sea-green: oklch(68.9% 0.127 178.0);
  --wada-grape-green: oklch(71.1% 0.090 112.9);
}

Source crosswalk: port number 40; authenticated modern page/plate and membership remain unresolved. Month assignment is verified against the pinned port helper, not the printed edition.

Download s40 JSON with IDs and provenance. Roles are suggestions computed from OKLCH chroma and contrast, not from Wada.