MONTHLY CALENDAB. 653 



being lost by the contrast, the orange appears redder, and the green more 

 blue. 



1726. When a compound colour is contrasted with one of its own elementary 

 or simple colours, the compound colour loses that which is common to both, 

 and the simple colour is modified by receiving the complementary of the com- 

 pound colour with which it is contrasted. Thus, with orange composed with 

 yellow and red, and pure red, the orange loses some of its red, and appears 

 yellower ; whilst the red, receiving the complementary of the orange (namely, 

 blue, as has been already shown), appears bluish. 



1727. If two simple colom-s are contrasted, we find that the general pi-in- 

 ciple before laid down still holds good. If we contrast, for example, — 1. Red 

 and yellow, it will be found that the red appears tinged with purple, and the 

 yellow with green, because violet, the complementary of yellow, is added to 

 the red, and green, the complementary of red, to the yellow. 2. Red and Hue. 

 — The red has a tendency to become orange, and the blue green, because 

 orange, the complementary of blue, is added to the red, and green, the com- 

 plementary of red, to the blue. 3. Felloto and Hue. — The yellow has an 

 orange, and the blue a violet tinge ; because orange, the complementary of 

 blue, is added to the yellow, and violet, the complementary of yellow, to the 

 blue. 



1728. The following resiilts have been obtained by actual experiment. Dif- 

 ferent colours were placed in juxta-position, and agreeable and disagreeable 

 combinations carefully noted. The following propositions are generally 

 allowed to be correct by those who have made the harmony of colours their 

 special study : — 



I. The complementary arrangement is superior to any other for harmony 

 of contrast. To produce the best effect, the colours should be as nearly as 

 possible of the same tone : white comes in best in the complementary 

 arrangement of blue and orange, and worst in a combination of yellow and 

 violet. 



II. The simple colours, — red, yellow, and blue, — combined in pairs, go 

 together better than one simple colour and one binary colour containing 

 that simple one. For example : — 



Eed and yellow harmonize better than red and orange. 

 Eed and blue ditto ditto red and violet. 



Yellow and red ditto ditto yellow and orange. 



Yellow and blue ditto ditto yellow and green. 



Blue and red ditto ditto blue and violet. 



Blue and yellow ditto ditto blue and green. 



III. In an arrangement of one simple colour with a binary colour containing 

 the simple one, the brighter the latter is, when compared with the former, 

 the better the contrast ; or, in other words, in arrangements of this sort, 

 the tone or intensity of the simple colour ought to be lower than that of tho 

 binary colour. For example : — 



