by yellow, yellow-red, and red, which last colour is to be arrested on the plus side. But little violet and blue, still less green, are admissible. The soft effect is produced by blue, violet, and red, which in this case is arrested on the minus side; a moderate addition of yellow and yellow-red, but much green may be admitted.
884.
If it is proposed to produce both these effects in their full significancy, the complemental colours may be excluded to a minimum, and only so much of them may be suffered to appear as is indispensable to convey an impression of completeness.
HARMONIOUS COLOURING.
885.
Although the two characteristic divisions as above defined may in some sense be also called harmonious, the harmonious effect, properly so called, only takes place