{"id":"hard-edge","no":448,"name":"Hard-Edge Painting","ja":"ハードエッジ・ペインティング","era":"1959–1970s","family":"幾何学抽象","kind":"スタイル","collection":"Dictionary expansion 24","addedAt":"2026-08-18","source":{"title":"Tate — Art Terms: Hard-Edge Painting","url":"https://www.tate.org.uk/art/art-terms/h/hard-edge-painting"},"reference":{"status":"verified","pageUrl":"https://www.tate.org.uk/art/art-terms/h/hard-edge-painting","credit":"Tate — Art Terms: Hard-Edge Painting","gallery":[{"imageUrl":"https://commons.wikimedia.org/wiki/Special:FilePath/Ellsworth%20Kelly%20-%20Red%20Yellow%20Blue%20White%20and%20Black%20-%20Google%20Art%20Project.jpg?width=640","pageUrl":"https://commons.wikimedia.org/wiki/File:Ellsworth%20Kelly%20-%20Red%20Yellow%20Blue%20White%20and%20Black%20-%20Google%20Art%20Project.jpg","credit":"Ellsworth Kelly《赤・黄・青・白・黒》— Wikimedia Commons / Public domain"}]},"essence":"境界を完全に鋭く保ち、平坦な色面だけで画面を構成する絵画。筆致も階調も排し、色面の縁が唯一の出来事になる。マスキングによる正確な縁は、以後のフラットデザインやベクター表現の直接の祖先である。","cues":["完全に鋭い色面の境界","階調のない平坦な塗り","限られた大きな色面","形状そのものが支持体を決める"],"intents":["信頼","技術","静けさ"],"works":["空港や病院の誘導サインで、色面の区分だけで系統を分けたいとき","アイコンやUIと、識別性が要る製品外装で、階調を使わず縁と面積だけで違いを出すとき"],"recipe":{"type":"単一ウエイトの幾何学サンセリフを色面の縁と同じ精度で切り、影を落とさない","layout":"面を三つ前後に絞り、分割位置を明快な分数から外し、外形自体も構成に含める","material":"マスキングで縁を機械的に切り、面の中は完全に均一に塗り、にじみを残さない"},"avoid":"一つでも縁をぼかすと錯覚的な奥行きが戻り、何かの絵に逆戻りする。縁だけ鋭くして面の数を増やしても、面と面の緊張は生まれず、塗り分けた図解に落ちる。","colors":["#f6f7f2","#ca3004","#140905"],"motif":"graphic","pair":["color-field-painting","flat-design"],"study":["ジュールズ・ラングスナーによる命名 1959","シェイプト・キャンバスへの展開","色面と縁の心理効果"],"en":{"essence":"Painting that keeps every boundary perfectly sharp and builds the picture out of flat planes of colour alone. Brushwork and gradation are excluded, so the edge of a plane becomes the only event. The precise edge obtained by masking is the direct ancestor of later flat design and vector work.","cues":["Perfectly sharp boundaries between planes","Flat colour with no gradation","A few large planes only","The shape itself determining the support"],"works":["Wayfinding in airports and hospitals where flat colour fields alone separate one system from another","Icons, interfaces and product exteriors where difference comes from edge and area alone, with no gradation"],"recipe":{"type":"One geometric sans, cut to the same edge precision as the colour, with no shadow","layout":"Three or so fields, divided off any obvious fraction, the outer shape part of the composition","material":"Flat opaque colour, the edge cut mechanically, with no overlap and no halo of light"},"avoid":"Feathering even one edge for depth brings back illusionistic space and the work becomes a picture of something, while sharpening edges and multiplying fields builds no tension and leaves a colour coded diagram.","study":["Jules Langsner's coining of the term in 1959","Its development into the shaped canvas","The psychological effect of plane and edge"]},"links":{"page":"https://indexstyle.org/styles/hard-edge","json":"https://indexstyle.org/api/styles/hard-edge","designSpec":"https://indexstyle.org/styles/hard-edge/design.md","imagePrompt":"https://indexstyle.org/styles/hard-edge/prompt.txt"},"usage":{"license":"CC-BY-4.0","licenseName":"Creative Commons Attribution 4.0 International","licenseUrl":"https://creativecommons.org/licenses/by/4.0/","attribution":"IndexStyle — https://indexstyle.org","attributionUrl":"https://indexstyle.org","scope":"Original IndexStyle text and structured data. Reference images, quoted works, and third-party material are excluded and retain their own rights."}}