Composition and band areas/order are generated display choices. Equal swatches show port row order. Original Wada proportions/order are unresolved.

Haishoku Sōkan — combination no. 251

No. 251

4 colors

Motion Message lab

ground
Slate Color石板色 rgb(52, 69, 76)
trail
Diamine Green常磐色 rgb(26, 116, 68)
accent
Red茜色 rgb(167, 33, 68)
type
Yellow黄色 rgb(255, 242, 0)

Highest-contrast pair: Yellow on Slate Color, 8.54:1 (passes WCAG AA for body text).

/* Sanzo Wada — Haishoku Sōkan — combination no. 251 */
:root {
  --wada-red: #a72144; /* oklch(48.1% 0.169 12.0) · 茜色 */
  --wada-yellow: #fff200; /* oklch(94.1% 0.200 105.7) · 黄色 */
  --wada-diamine-green: #1a7444; /* oklch(49.5% 0.112 154.6) · 常磐色 */
  --wada-slate-color: #34454c; /* oklch(37.9% 0.025 225.0) · 石板色 */

  /* suggested roles */
  --ground: var(--wada-slate-color);
  --type: var(--wada-yellow);
  --accent: var(--wada-red);
  --trail: var(--wada-diamine-green);
}

/* OKLCH variant */
:root {
  --wada-red: oklch(48.1% 0.169 12.0);
  --wada-yellow: oklch(94.1% 0.200 105.7);
  --wada-diamine-green: oklch(49.5% 0.112 154.6);
  --wada-slate-color: oklch(37.9% 0.025 225.0);
}

Source crosswalk: port number 251; authenticated modern page/plate and membership remain unresolved.

Download c251 JSON with IDs and provenance. Roles are suggestions computed from OKLCH chroma and contrast, not from Wada.

和田三造 · 配色総鑑. Screen colors are CMYK→sRGB digital approximations, including retained, unvalidated legacy estimates for unmatched Vol. 2 colors. Composition roles and month mappings follow the documented port method; edition mappings remain uncertain. Sources & method · Version 1 dataset (581 combinations, 330 color records) · Schema & provenance · Research context. Saved and Compare are local to this browser. Viewport-only screenshots show partial collections; complete cards are in the DOM and dataset.