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The Color Naming System (CNS) is a systematic notation for named colors for computer applications using English terms created by Berk et al. in 1982. == System == CNS uses ten color names, three of which (''black, white, gray'') are special, and has them combined or prefixed with several modifiers. The system expressed in Backus–Naur Form looks something like this:.〔(Tab Atkins Jr.: The CNS Color Naming System ) on adding CNS to CSS Color level 4〕 named-color := gray-color | chromatic-color gray-color := 'black' | 'white' | lightness gray gray := 'gray' | 'grey' chromatic-color := (tint | shade ) hue | (lightness || saturation )? hue tint := 'whitish' | 'pale' | 'brilliant' | 'vivid' shade := 'blackish' | 'dim' | 'deep' | 'vivid' saturation := 'grayish' | 'moderate' | 'strong' | 'vivid' lightness := 'moderate' | 'very'? ('dark' | 'light' ) hue := splash-color? base-color | base-color '-' base-color base-color := 'red' | 'orange' | 'brown' | 'yellow' | 'green' | 'blue' | 'purple' splash-color := 'reddish' | 'orangish' | 'brownish' | 'yellowish' | 'greenish' | 'bluish' | 'purplish' 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Color Naming System」の詳細全文を読む スポンサード リンク
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