The juxtaposition of yellow and green has always something ordinary, but in a cheerful sense; blue and green, on the other hand, is ordinary in a repulsive sense. Our good forefathers called these last fool's colours.
RELATION OF THE COMBINATIONS TO LIGHT AND DARK.
830.
These combinations may be very much varied by making both colours light or both dark, or one light and the other dark; in which modifications, however, all that has been found true in a general sense is applicable to each particular case. With regard to the infinite variety thus produced, we merely observe:
831.
The colours of the active side placed next to black gain in energy, those of the passive side lose. The active conjoined with white and