blue-red

comparative more blue-red · superlative most blue-red

1. Of a colour between blue and red; purple or crimson.

   Amyl alcohol extracts a blue-red color from material dyed with magenta, but extracts a yellow color from aurin, while from orchil a pink or violet color is obtained.

   1908, Samuel Philip Sadtler, A Hand-book of Industrial Organic Chemistry

   5 more examples

   This unquiet feeling increases as the hue progresses, and it may be safely assumed, that a carpet of a perfectly pure deep blue-red [translating Blaurot] would be intolerable.

   1840, Johann Wolfgang von Goethe, Goethe's Theory of Colours

   A dye-stuff which dyes wool and silk in acid-bath in fine red-violet tints, dissolves in water with a blue-red color and a yellowish fluorescence, is sparingly soluble in alcohol, insoluble in ether and benzene, […]

   1898, The Year-book for Colorists and Dyers, page 85

   (V), C₁₄H₉O₃NBr₂, dark crystals with cantharides luster, blackens above 230°, does not m. 310°, sol. in NaOH with blue-red color and very faint fluorescence.

   1925, Chemical Abstracts, volume 19, page 2649

   Standing and moving to under one of the lights by the nav station I could see a dark blue-red mark across the right side of my rib cage. Prodding gently I realised I had just cracked or broken one or more ribs.

   2013, Crispin Latymer, Where the Ocean Meets the Sky, page 48

   When hemoglobin is unoxygenated, blood assumes a darker blue-red color. Thus, blood coming from the lungs is well oxygenated and appears red. Blood leaving the tissues has given up its oxygen and appears blue-red.

   2014, Barbara L. Herlihy, The Human Body in Health and Illness, page 289

2. Consisting of the colours blue and red individually.

   a blue-red cock (rooster)

plural blue-reds

1. countableuncountableA colour between blue and red; purple or crimson.

   A blue-red monochromatic color plan includes any hues created when blue-red is combined with white, black, and/or gray.

   2014, Joen Wolfrom, Color Play, page 104

   1 more example

   Let us suppose a red represented by the equivalent number, five, with one part of blue added to it, thus causing it to be a blue-red or crimson.

   1981, The Technical Educator, an Encyclopædia