brightness lose in strength, the passive gain in cheerfulness. Red and green with black appear dark and grave; with white they appear gay.
832.
To this we may add that all colours may be more or less broken or neutralised, may to a certain degree be rendered nameless, and thus combined partly together and partly with pure colours; but although the relations may thus be varied to infinity, still all that is applicable with regard to the pure colours will be applicable in these cases.
CONSIDERATIONS DERIVED FROM THE EVIDENCE OF EXPERIENCE AND HISTORY.
833.
The principles of the harmony of colours having been thus far defined, it may not be irrelevant to review what has been adduced in connexion with experience and historical examples.