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Deep reddish purple. B: Normalized to [0–255] (byte) The color Byzantium is a particular dark tone of purple. It originates in modern times, and, despite its name, it should not be confused with Tyrian purple ( hue rendering ), the color historically used by Roman and Byzantine emperors. The latter, often also referred to as "Tyrian red", is ...
The dye is an organic compound of bromine (i.e., an organobromine compound), a class of compounds often found in algae and in some other sea life, but much more rarely found in the biology of land animals. This dye is in contrast to the imitation purple that was commonly produced using cheaper materials than the dyes from the sea snail.
Shades of purple. There are numerous variations of the color purple, a sampling of which is shown below. In common English usage, purple is a range of hues of color occurring between red and blue. [1] However, the meaning of the term purple is not well defined. There is confusion about the meaning of the terms purple and violet even among ...
In color theory, the line of purples or purple boundary is the locus on the edge of the chromaticity diagram formed between extreme spectral red and violet. Except for these endpoints of the line, colors on the line are non-spectral (no monochromatic light source can generate them). Rather, every color on the line is a unique mixture in a ratio ...
Byzantine science was essentially classical science. [2] Therefore, Byzantine science was in every period closely connected with ancient-pagan philosophy and metaphysics. Despite some opposition to pagan learning, many of the most distinguished classical scholars held high office in the Church. [3] The writings of antiquity never ceased to be ...
Byzantine flags and insignia. For most of its history, the Eastern Roman (Byzantine) Empire did not use heraldry in the Western European sense of permanent motifs transmitted through hereditary right. [1] Various large aristocratic families employed certain symbols to identify themselves; [1] the use of the cross, and of icons of Christ, the ...
Byzantine dress. A 14th-century military martyr wears four layers, all patterned and richly trimmed: a cloak with tablion over a short dalmatic, another layer (?), and a tunic. Byzantine dress changed considerably over the thousand years of the Empire, [1] but was essentially conservative.
MTT assay. A microtiter plate after an MTT assay. Increasing amounts of cells resulted in increased purple colouring. The MTT assay is a colorimetric assay for assessing cell metabolic activity. [1] [2] NAD (P)H-dependent cellular oxidoreductase enzymes may, under defined conditions, reflect the number of viable cells present.