daylight blue

noun

Definition of daylight blue

  1. 1 :  a pigment prepared by mixing Prussian blue with barium sulfate

  2. 2 :  the color of average daylight considered a blue if skylight under average noon sunlight is taken as gray or neutral but closely approximating gray if according to the practice of recent years overcast skylight or sunlight outside the earth's atmosphere is taken as the neutral gray

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