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  2. Byzantium (color) - Wikipedia

    en.wikipedia.org/wiki/Byzantium_(color)

    Byzantium. 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 more reddish in hue, and is in fact often ...

  3. Caput mortuum (pigment) - Wikipedia

    en.wikipedia.org/wiki/Caput_mortuum_(pigment)

    Caput mortuum ( Latin for 'dead head', and variously spelled caput mortum or caput mortem ), also known as cardinal purple, is the name given to a purple variety of haematite iron oxide pigment, used in oil paints and paper dyes. Due to the cultural significance of its deep purple colour, it was very popular for painting the robes of religious ...

  4. Eggplant (color) - Wikipedia

    en.wikipedia.org/wiki/Eggplant_(color)

    Eggplant is a dark purple [1] or brownish -purple [2] color that resembles the color of the outer skin of European eggplants. [3] Another name for the color eggplant is aubergine [2] (the French, German and British English word for eggplant). The first recorded use of eggplant as a color name in English was in 1915.

  5. List of flags containing the colour purple - Wikipedia

    en.wikipedia.org/wiki/List_of_flags_containing...

    List of flags containing the colour purple. Purple is one of the least used colors in vexillology and heraldry. Currently, the color appears in only three national flags: that of Dominica, Spain, and Nicaragua, and one co-official national flag, the Wiphala (co-official national flag of Bolivia) [original research?].

  6. Orchid (color) - Wikipedia

    en.wikipedia.org/wiki/Orchid_(color)

    Vivid purple. B: Normalized to [0–255] (byte) Orchid is a bright rich purple color that resembles the color which various orchids often exhibit. Various tones of orchid may range from grayish purple to purplish-pink to strong reddish purple. The first recorded use of orchid as a color name in English was in 1915. [1]

  7. Colors of noise - Wikipedia

    en.wikipedia.org/wiki/Colors_of_noise

    Red (Brownian) Purple. Grey. v. t. e. In audio engineering, electronics, physics, and many other fields, the color of noise or noise spectrum refers to the power spectrum of a noise signal (a signal produced by a stochastic process ). Different colors of noise have significantly different properties. For example, as audio signals they will ...

  8. Hospital emergency codes - Wikipedia

    en.wikipedia.org/wiki/Hospital_emergency_codes

    Hospital emergency codes are coded messages often announced over a public address system of a hospital to alert staff to various classes of on-site emergencies. The use of codes is intended to convey essential information quickly and with minimal misunderstanding to staff while preventing stress and panic among visitors to the hospital.

  9. Color wheel - Wikipedia

    en.wikipedia.org/wiki/Color_wheel

    A color wheel or color circle is an abstract illustrative organization of color hues around a circle, which shows the relationships between primary colors, secondary colors, tertiary colors etc. Some sources use the terms color wheel and color circle interchangeably; [2] [3] however, one term or the other may be more prevalent in certain fields ...