567c4135_our___Colour_Wheel___Harmonies__Monochromatic
Use a colour with one that is three full segments away in the colour wheel. Contrasting harmonies may be harsh Yellow and red Green and orange Orange and violet [Monochromatic] 
Contrast
C o m p l e m e n t a r y
S p l i t C o m p l e m e n t a r y
N e a r C o m p l e m e n t a r y
C o n t r a s t
A n a l o g o u s
T r i a d i c
T e t r a d i c
Floristry : Theory of Colour : Colour Wheel : Harmonies
Monochromatic