These early plants probably used something called retinal, which is a dark purple color.

这些早期的植物可能使用了一种叫做视黄醛的东西，它是一种深紫色的分子。

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The first specimens were just plain old red tulips, but they could be bred into some extraordinary variations, like the dark purple tulip.

最初的标本只是普通的古老的红色郁金香，但它们可以被培育成一些不同寻常的变种，比如深紫色郁金香。

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Some of the most prized tulips were white with purple streaks, or red with yellow streaks on the petals, even a dark purple tulip that was very much prized.

一些最珍贵的郁金香是白色带紫色条纹的，或红色、花瓣上带黄色条纹的，甚至深紫色的郁金香是非常珍贵的。

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She could choose a bright color of nail polish, a hip color, a dark purple or maybe even that shade of brown.

NEWYORKER: M&M World

The machine blends iron, bleach and sodium hydroxide to form a dark purple liquid mixture of ferrate, salt and water that gets metered into the water supply. (The color disappears instantly as it reacts with the water.) Common disinfectants ozone and chlorine can turn the water cloudy or, worse, leave behind harmful chemical by-products.

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So her mother had got permission for Lisette to wear her dark-purple-tinted glasses to school.

NEWYORKER: I.D.