&c As Well As Of The Semi-neutral Gray &c: It Therefore Is Changed

in hue less than any other colour by mixture with black, as it is

likewise by distance. Blue is present subordinately in all tertiary and

broken colours, and being nearest in the scale to black, breaks and

contrasts powerfully and agreeably with white, as in pale blues, skies,

&c. Being less active than the other primaries in reflecting light, it

is sooner lost as a local colour by assimilation with distance. There is

an ancient doctrine that the azure of the sky is a compound of light and

darkness, and some have argued hence that blue is not a primary colour,

Zinc-cobalt Blue 140 Bice facebooktwittergoogle_plusredditpinterestlinkedinmail