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  2. 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]

  3. Lightness - Wikipedia

    en.wikipedia.org/wiki/Lightness

    In colorimetry and color appearance models, lightness is a prediction of how an illuminated color will appear to a standard observer. While luminance is a linear measurement of light, lightness is a linear prediction of the human perception of that light. This distinction is meaningful because human vision's lightness perception is non-linear ...

  4. Category:Shades of magenta - Wikipedia

    en.wikipedia.org/wiki/Category:Shades_of_magenta

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate; Help; Learn to edit; Community portal; Recent changes; Upload file

  5. The Color Purple (musical) - Wikipedia

    en.wikipedia.org/wiki/The_Color_Purple_(musical)

    The Color Purple is a musical with music and lyrics by Brenda Russell, Allee Willis, and Stephen Bray, based on the 1982 novel The Color Purple by Alice Walker and its 1985 film adaptation. The musical follows the journey of Celie, an African American woman in the American South from the early to mid-20th century.

  6. 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 ...

  7. Han purple and Han blue - Wikipedia

    en.wikipedia.org/wiki/Han_Purple_and_Han_Blue

    Color. Azurite was the only natural blue pigment used in early China. Early China seems not to have used a natural purple pigment and was the first to develop a synthetic one. Han blue in its pure form is, as the name suggests, blue. Han purple in its pure form is actually a dark blue, that is close to indigo.

  8. Purple urine bag syndrome - Wikipedia

    en.wikipedia.org/wiki/Purple_urine_bag_syndrome

    Purple urine bag syndrome ( PUBS) is a medical syndrome where purple discoloration of urine occurs in people with urinary catheters and co-existent urinary tract infection. Bacteria in the urine produce the enzyme indoxyl sulfatase. This converts indoxyl sulfate in the urine into the red and blue colored compounds indirubin and indigo. [1]

  9. Tyrian purple - Wikipedia

    en.wikipedia.org/wiki/Tyrian_purple

    Tyrian purple (Ancient Greek: πορφύρα porphúra; Latin: purpura), also known as royal purple, imperial purple, or imperial dye, is a reddish-purple natural dye. The name Tyrian refers to Tyre, Lebanon , once Phoenicia .