# Cloisonnism (クロワゾニスム)

> A manner of painting named after the partitions of cloisonné enamel: flat fields of colour enclosed by heavy contour lines. It brought the way of seeing of ukiyo-e prints and stained glass into oil painting, abandoning shaded volume in favour of colour laid down from memory. The technique that prepared the flatness of the poster.

- IndexStyle No.464 — https://indexstyle.org/styles/cloisonnism
- Kind: Style · Family: Symbolism and Ornament · Era: 1888–1895
- Mood: Luxury, Intimacy, Calm
- Color cues: #e9e6dd / #67635d / #171615 (cues taken from reference works, not a fixed palette)

## Defining characteristics

- Thick, dark contour lines
- Flat colour fields without shading
- Decoratively simplified shapes
- Colouring drawn from memory

## Best used for

- Flat illustration systems with bold keylines for packaging and posters
- Stained-glass-like brand iconography built from enclosed colour cells

## Research method

This entry records a historical style; derive the treatment from its sources rather than a fixed recipe:

- Sturdy hand-lettered or slab forms whose outlines match the drawing's keyline weight
- Shapes simplified into enclosed cells, tiled edge to edge like leaded glass
- Flat unmodulated colour inside dark contour lines; no cast shadow, no gradient

## What to avoid

Avoid re-admitting shading or atmospheric depth inside the cells; the moment volume returns, the enamel-like flatness breaks.

## Application checklist

Before calling a piece an application of this style, check it against the defining characteristics:

- [ ] Thick, dark contour lines
- [ ] Flat colour fields without shading
- [ ] Decoratively simplified shapes
- [ ] Colouring drawn from memory
- [ ] At least one reference work below has been studied directly
- [ ] The caution above ("What to avoid") has been addressed

## Related styles

- **Japonisme (ジャポニスム)** — Re-edits asymmetry, flatness and daring crops learned from Japanese prints into Western modern composition. → https://indexstyle.org/styles/japonisme
- **Art Nouveau (アール・ヌーヴォー)** — Joins letters, figures and ornament into one flowing, plant-like line. → https://indexstyle.org/styles/art-nouveau

## Further study

- The experiments of Bernard and Anquetin
- The reception of Japonisme
- The relationship with Synthetism

## Reference works

- Paul Gauguin《説教のあとの幻影》1888 — Wikimedia Commons / Public domain — https://commons.wikimedia.org/wiki/File:La%20vision%20apr%C3%A8s%20le%20sermon%20(Paul%20Gauguin).jpg
- Émile Bernard《ポン=タヴェンのりんご摘み》1888 — Wikimedia Commons / Public domain — https://commons.wikimedia.org/wiki/File:Emile%20Bernard%2C%20Apple%20Pickers%20at%20Pont-Aven%2C%201888.jpg
- Émile Bernard《牧場のブルターニュの女たち》1888 — Wikimedia Commons / Public domain — https://commons.wikimedia.org/wiki/File:%C3%89mile%20Bernard%201888-08%20-%20Breton%20Women%20in%20the%20Meadow%20(Le%20Pardon%20de%20Pont-Aven).jpg

## Source of record

- Wikipedia — Cloisonnism — https://en.wikipedia.org/wiki/Cloisonnism

## Machine surfaces

- JSON: https://indexstyle.org/api/styles/cloisonnism
- Image-generation prompt (legally clean): https://indexstyle.org/styles/cloisonnism/prompt.txt
- MCP: https://indexstyle.org/mcp (tools: search_styles, get_style, compose_styles; prompts: image-prompt, apply-style)

## 日本語

七宝の仕切り線から名を得た、太い輪郭線で囲った平坦な色面による描法。浮世絵とステンドグラスの見方を油彩へ持ち込み、陰影による立体を捨てて記憶の中の色を置く。ポスターの平面性を準備した技法。

特徴: 太く暗い輪郭線／陰影のない平坦な色面／装飾的に単純化された形／記憶の色による彩色
注意: 表面的な記号へ還元せず、時代・地域・技術・制作主体の文脈を確認する。