Harmony /ˈhɑːməni/
Definition: the quality of forming a pleasing and consistent whole
There are three attributes in a colour – hue, saturation and value.
- Hue refers to a colour/shade
- Saturation refers to the colour intensity
- Value refers to the tone, from light to dark
And this is what happens when colours collide euphonically.
1. Monochrome harmony
Value and saturation are present with no hue involved.
(Scratch Productions, Andrew Hitchen, Flickr)
2. analogous harmony
Use of one or more neighbouring hues on the colour palette.

(Mike Jones, Flickr)
3. Analogous harmony warm and cool
Warm is represented by spectrum of colour red, while cool is represented by blue shades.
(SOMArts Cultural Center, Ajuan Mance, Flickr)
4. Complementary hues
Combination of two hues at the opposite ends of the colour palette.

5. Split Complementary
Combination of 3 or more hues at the opposing ends of palette.
Triad Harmony:

Tetrad Harmony:
