Sienna is a colour: a warm yellowish brown, like dry earth in the sun, or like the clay painters squeeze from a tube. The name comes from the Italian city of Siena, where that earth was dug.

Sienna is a colourSienna是一種顏色：a warm yellowish brown溫暖的黃棕色，like dry earth in the sun像太陽下曬乾的泥土，or like the clay painters squeeze from a tube或像畫家從管子裡擠出來的黏土顏料。The name comes from the Italian city of Siena這個名字來自義大利的錫耶納城，where that earth was dug那種泥土就是從那裡挖出來的。

Painters still buy raw sienna, which stays more yellow-brown, and burnt sienna, the same earth after heating, which turns redder, more like rust. When someone just says sienna, they usually mean that yellowish brown, not the red.

Painters still buy raw sienna畫家現在還是買生赭（raw sienna），which stays more yellow-brown顏色比較偏黃棕，and burnt sienna還有熟赭（burnt sienna），the same earth after heating是同一種泥土加熱過後，which turns redder, more like rust顏色變得比較紅、比較像鐵鏽。When someone just says sienna如果有人只說sienna，they usually mean that yellowish brown通常是指那種黃棕色，not the red不是紅色。

You can use it as a noun (a wash of sienna) or as an adjective (sienna walls). It lives in art class and in careful colour talk.

You can use it as a noun (a wash of sienna)你可以把它當名詞用（a wash of sienna赭色的一層渲染），or as an adjective (sienna walls)也可以當形容詞用（sienna walls赭色的牆）。It lives in art class這個字常出現在美術課，and in careful colour talk和講究用色的談話裡。

You would not call dirty shoes sienna unless you were being a bit poetic.

You would not call dirty shoes sienna你不會把髒鞋子叫做sienna，unless you were being a bit poetic除非你講話有點詩意。