Scientifically speaking, monochromatic light refers to light of a narrow frequency. Similarly, monochromatic colour schemes use variations in lightness and saturation of a single or narrow section of the colour wheel. Monochrome schemes are, perhaps, the simplest to create as they’re all taken from the same hue, but they can, in turn, be overwhelming or even boring, depending on the colour chosen.
No other colour scheme depends so much on the mood created by a single colour as a monochromatic scheme. Blue is peaceful and calming, yellow projects happiness, green symbolises both nature or jealousy and so on.
The downfall with a monochrome colour scheme is that it can sometimes lack brilliance and contrast, but the upside is that a contrasting photograph will ‘pop’ beautifully against a single colour background.
