§ 55 XIV. -XVI. AGREEMENT OF COLOURS. 1 1 3 



(pp. 74, 76, 98.) — 2. By the Harmony of analogy : — 3. By 

 the addition of a third, without which they are wanting to com- 

 plete harmony: — 4. By the addition of several: — 5. Some- 

 times a colour is better by itself: — 6. Sometimes a colour is 

 better as a ground for others. 



I have already noticed the contrasts of colours (Sect. V. 

 p. 98). All do not of course offer the same kind or the same 

 amount of contrast, as they do not harmonise or disagree 

 equally, or under the same conditions; and red with blue, 

 white with black, white with red, and others, have each a 

 very different effect on their companion when in juxta- 

 position. Dark and light colours, in like manner, vary in 

 their effect on each other ; and the union of these last is not 

 well adapted for ornamentation, being frequently harsh. 



XV. Some colours disagree from being positive discords ; 

 some fail to accord with each other from their tones being 

 of unequal intensity ; some from their proportions in quan- 

 tity being too much disregarded ; and some (as mentioned in 

 Sects. X. and XIV.) from wanting another colour to complete 

 the harmonious combination. Of the latter, I may mention 

 an instance in blue and red, which two, though concords, 

 require the addition of yellow to make perfect harmony. 



XVI. I shall first notice the arrangement of colours by 

 twos, and show their agreement or disagreement. 



This is merely with a view to establish their effect upon 

 each other in juxtaposition, without reference to the quantity 

 of each. 



Among the most pleasing of those which harmonise with 

 each other, in pairs, are : — 



1. Blue and orange (or gold). 



2. Blue and scarlet. 



3. Blue and white. 



4. Blue and black. 



5. Blue and horsechesnut. 



6. Purple and orange (or gold). 



7. Green and gold. 



8. Black and orange (or gold). 



9. Horsechesnut-brown and 



orange (or gold). 



10. Brown and gold. 



11. Crimson and gold. 



