1. Color Wheel
The colour wheel is divided into three categories: primary, secondary, and tertiary.
The three primary colours are red, yellow and blue.
These colours are considered to be foundation colours because they are used to create all other colours.

2. Colour Wheel
By combining two of the primary colours equally, three secondary colors are formed. They are orange, green and violet.
The six tertiary colours (AKA intermediate colours) are made by combining a primary and an adjacent secondary colour. These colors are red-orange, red-violet, yellow-green, yellow-orange, blue-green and blue-violet.

3. Colour Wheel

4. Cool and Warm Colours
Colours are also divided into cool and warm categories.
The cool colours are any combination of green, blue and violet.
Warm colours are any combination of red, orange and yellow.

5. Tint A tint of a colour is made by adding white.
A shade of a colour is made by adding black.

6. Colour Harmonies (Schemes)
Monochromatic - This scheme
uses a single hue. (example: red and
its varying tints and shades)
Analogous - This scheme uses
adjacent hues.
(example: red, red-orange,
and red-violet)

7. Complementary Colours
If two hues are opposite each other on the colour wheel they are considered to be complementary colors.
When used together in a design they make each other seem
brighter and more
intense. (example:
red and green)

8. Triadic Colours
This scheme also uses three colours. They are evenly spaced from each other. Think of an equilateral triangle. (example: red, yellow, and blue)