cyanine blue

noun

Definition of cyanine blue

1 a : a strong blue that is greener and deeper than Sèvres and redder and darker than cerulean blue (see cerulean blue 1b) called also Leitch's blue
b : a deep purplish blue that is less strong and very slightly redder than sapphire (see sapphire 2a) and bluer and duller than hyacinth blue or Mazarine blue
2 or less commonly cyanine : a blue pigment consisting of a mixture of cobalt blue and Prussian blue called also Leitch's blue
3 : cyanine 3

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