567c4135_our___Colour_Wheel___Harmonies__Monochromatic
This is derived by using a colour in combination with another colour on either side of the opposite colour. Red/violet opposite green & yellow Yellow/green opposite red & violet [Monochromatic] 
Split Complementary
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