[Answer] Magenta?

Answer: Bioartist Suzanne Anker experiments with creating artificial environments (such as the conditions suitable for life in outer space) in which she grows plants. In "Astroculture (Shelf Life) " 2009 she found that the plants' leaves turned:

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Magenta? STAN MAGENTA Magenta (/məˈdʒɛntə/) is a color that is variously defined as purplish-red reddish-purple or mauvish-crimson. On color wheels of the RGB (additive) and CMY (subtractive) color models it is located midway between red and blue. It is one of the four colors of ink used in color printing by an inkjet printer along with yellow black and cyan to make all the other colors. The tone of magenta used in printing is called "printer's magenta". Magenta is technically not a color it has no wave length of its own although it is classified as a color by many and it is easier to call it one. It is one of the four colors of ink used in color printing by an inkjet printer along with yellow black and cyan to make all the other colors. The tone of magenta used in printing is called "printer's magenta". Magenta is technically not a color it has no wave length of its own although it is classified as a color by many and it is easier to call it one. Magenta took its name from an aniline dye made and patented in 1859 by the French chemist François-Emmanuel Verguin who originally called it fuchsine. It was renamed to celebrate the Italian-French victory at the Battle of Magenta fought between the French and Austrians on June 4 1859 near the Italian town of Magenta in Lombardy . A virtually identical color called roseine was created in 1860 by two British chemists: Chambers Nicolson and Geor...

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