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Colour Wheel
A colour wheel is a visual representation of colours arranged according to their chromatic
relationships.

Primary Colours Secondary Colours Tertiary Colourst
Identification & Recognition
Light from external objects enters our eye through the pupil. The human eye has a lens and
iris diaphragm which works like a camera. The optics of the eye project an upside-down
image of those objects on the rear, inner surface of the eyeball (the retina). There, a dense
carpet of light-sensitive photoreceptors converts light (photons) into electro-chemical sig-
nals, which are then processed by neural circuits in the retina and transmitted to the brain. Any one of the primary
Any of the two primary colours colours and any one of the
Primary Colours can be mixed to produce secondary colours can be mixed
secondary colours.
Red, yellow and blue are primary colours. These are three pigment colours, which cannot These are the primary colours. to produce tertiary colours.
be made by mixing any other colours, instead we can mix these colours to create all the
other ones. They can also be combined with white or black to create tints (lighter tones) and Complementary Colours Analogous Colours Tertiary Colourst
shades (darker hues).

The group of colours have Active colours are warm colours,
The pair of colours that similarities and have a close
Colour Spaces and Theory contrast with each other are relationship with each other. and passive colours are cool
complementary colours. colours.
Additive Colours
An additive colour model involves light emitted directly from a source or Colour Psychology
illuminant of some sort. Combining one of the additive primary colours Each colour has a profound effect on how we feel, both, mentally and physically. The
with another in equal amounts produces the additive secondary colours following are some emotional associations that humans tend to have with certain colours.
cyan, magenta and yellow. Combining all three primary colours in equal
intensities produces white. Colour Name Emotional Responses Behavioural/ Physical Responses

Black Mystery and loneliness N/A
Subtractive Colour White Purity and balance N/A
A subtractive colour model explains the mixing of paints, dyes, inks
and natural colourants to create a full range of colours. Each of which Purple/Violet Exotic and creative N/A
is caused by subtracting (i.e. absorbing) some wavelengths of light
and reflecting the others. Blue Freshness Reduced pulse, body temperature and appetite

Green Hope, peace and ecology Mentally soothing, calms nerves

Yellow Optimism, spirituality and Attention-grabbing, alarming
Inspiration
CMYK Colour Model
This (also known as process colour model or four colour model) is a Orange Energy, happiness and liveliness Perceived as glowing, also attention-grabbing
subtractive colour model, used in colour printing. CMYK refers to the
four inks used in colour printing: cyan, magenta, yellow and key black. Red Stimulant, enthusiastic and Over-exposure causes agitation, raises the
pulse, increased appetite
passionate

Brown Stability, reliability and A feeling of wholesomeness, Offers a sense of
approachability orderliness

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