16 Color Standards and Nomenclature. 



terms. It is not strictly correct to say a "dark tint" or 

 1 'light shade" of any color, because a tint implies a color 

 paler than the full color, while a shade means exactly 

 the opposite; and to say an "orange shade (or tint) of 

 red," a "greenish shade (or tint) of blue," a "bluish 

 shade (or tint) of violet," etc., is an absurdity, for the 

 term hue, which specifically and alone refers to relative 

 position in the spectrum scale, without reference to light- 

 ness or darkness, is the only one which can correctly be 

 used in such cases. 



Indeed the standardization of color terms is almost 

 if not quite as important, in the interest of educational 

 progress, as that of the colors themselves and their 

 names ; therefore, to make easy a clear understanding of 

 the specific meaning of each, the following definitions 

 are given: — 



Color. — The term of widest application, being the 

 only one which can be used to cover the entire range of 

 chromatic manifestation ; that is to say, the spectrum 

 colors (together with those between violet and red, not 

 shown in the spectrum) with all their innumerable vari- 

 ations of luminosity, mixture, etc. In a more restricted 

 sense, applied to the six distinct spectrum colors (red, 

 orange, yellow, green, blue, and violet), which are some- 

 times distinguished as fundamental colors or spectrum 

 colors. 



Hue. — While often used interchangeably or syn- 

 onymously with color, the term hue is more properly re- 

 stricted by special application to those lying between 

 any contiguous pair of spectrum colors (also between 

 violet and purple and between purple and red); as an 

 orange hiie (not shade or tint, as so often incorrectly 

 said) of red; a yellow hue of orange ; a greenish hue of 

 yellow, a bluish hue of green ; a violet hue of blue, etc. 



Tint. — Any color (pure or broken) weakened by 

 high illumination or (in the case of pigments) by ad- 



