Editing Primary color (section)

=== Philosophy ===
Philosophical writing from ancient Greece has described notions of primary colors, but they can be difficult to interpret in terms of modern color science. [[Theophrastus]] (c. 371–287 BCE) described [[Democritus]]' position that the primary colors were white, black, red, and green.<ref name="renzoshamey2020">{{cite book |last1=Shamey |first1=Renzo |last2=Kuehni |first2=Rolf G. |title=Pioneers of Color Science |date=2020 |doi=10.1007/978-3-319-30811-1|isbn=978-3-319-30809-8 |s2cid=241801540 }}</ref>{{rp|4}} In [[Classical Greece]], [[Empedocles]] identified white, black, red, and, (depending on the interpretation) either yellow or green as primary colors.<ref name="renzoshamey2020"/>{{rp|8}} [[Aristotle]] described a notion in which white and black could be mixed in different ratios to yield chromatic colors;<ref name="renzoshamey2020"/>{{rp|12}} this idea had considerable influence in Western thinking about color. [[François d'Aguilon]]'s 16th century notion of the five primary colors (white, yellow, red, blue, black) was influenced by Aristotle's idea of the chromatic colors being made of black and white.<ref name="renzoshamey2020"/>{{rp|87}}The 20th century philosopher [[Ludwig Wittgenstein]] explored color-related ideas using red, green, blue, and yellow as primary colors.<ref>{{cite journal
 |last1        = Beran
 |first1       = Ondrej
 |title        = The Essence (?) of Color, According to Wittgenstein
 |journal      = From the ALWS Archives: A Selection of Papers from the International Wittgenstein Symposia in Kirchberg Am Wechsel
 |date         = 2014
 |url          = http://wittgensteinrepository.org/agora-alws/article/view/2704/3132
 |access-date  = 2017-12-11
 |archive-date = 2017-12-11
 |archive-url  = https://web.archive.org/web/20171211104829/http://wittgensteinrepository.org/agora-alws/article/view/2704/3132
 |url-status   = dead
}}</ref><ref>{{cite book |last1=Wittgenstein |first1=Ludwig |title=The Big Typescript, TS. 213 |date=2005 |publisher=Blackwell Pub |location=Malden, MA |isbn=978-1405106993 |edition=German-English scholar's}}</ref>
[[File:Franciscus Aguilonius color scheme.png|thumb|upright=1.4|The color scheme of [[François d'Aguilon]], where the two simple colors of white (albus) and black (niger) are mixed to the "noble" colors of yellow (flavus), red (rubeus), and blue (caeruleus). Orange (aureus), purple (purpureus), and green (viridis) are each combinations of two noble colors.<ref>{{cite web |last1=MacEvoy |first1=Bruce |title= do "primary" colors exist?|url=https://www.handprint.com/HP/WCL/color6.html |website=handprint : colormaking attributes|access-date=1 December 2020 |quote=From a modern perspective, the most peculiar feature of d'Aguilon's theory is that these three "noble" hues were themselves created from the mysterious blending of white and black, or light and dark (upper curved lines in the figure), so that light and dark were the two "simple" or primary colors. The "composite" hues green, orange (gold), and purple (lower curved lines) were mixed from the "noble" triad colors. D'Aguilon's diagram was reprinted by the Jesuit scholar Athanasius Kircher in his optical treatise Ars magna lucis et umbrae (The Great Art of Light and Shadow, 1646). Both sources were widely read in the 17th century, and shaped the explanation of color mixing dominant during the Baroque.}}</ref>]]