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Colour Theory

Art Education

Useful for: OSSC Art Education Instructor

Overview

Colour theory explains how colours relate, mix and affect mood, using the colour wheel and properties such as hue, value and saturation.

Key points

Traditional pigment primaries are red, yellow and blue; light primaries are red, green and blue (RGB).
Secondary colours mix two primaries; tertiary colours mix a primary and a secondary.
Complementary colours lie opposite on the wheel (red–green, blue–orange).
Warm colours (reds, oranges) advance; cool colours (blues, greens) recede.
Isaac Newton arranged colours in a circle (1666).
Saturation is the purity or intensity of a colour.

Explanation

Analogous colours sit next to each other and look harmonious.
Adding white makes a tint; adding black makes a shade.
Colour carries cultural meanings.
Printing uses CMYK inks.
Colour-blind learners need non-colour cues.

Step by step

Identify the art concept, medium or movement asked.
Recall the definition, artist, period or technique.
Choose the option that matches the visual or pedagogical principle.

Examples

Blue + yellow → green (secondary).
Red with a little white → pink (tint).
Orange next to blue → complementary contrast.

Traps and advanced points

Trap: Mixing light and pigment primaries.
Trap: Calling a shade a tint.
Trap: Ignoring colour-blindness.

Quick revision

Primary, secondary, tertiary.
Complementary pairs.
Tint, shade, saturation.

Practice MCQs

The three traditional primary colours are —
1. red, yellow, blue
2. red, green, orange
3. black, white, grey
4. purple, green, orange
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Answer: (a) red, yellow, blue. They cannot be made by mixing other colours.
Mixing blue and yellow gives —
1. orange
2. green
3. purple
4. brown
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Answer: (b) green. Green is a secondary colour.
The complementary colour of red is —
1. blue
2. green
3. yellow
4. orange
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Answer: (b) green. Complementary colours lie opposite on the colour wheel.
A tint is made by adding — to a colour.
1. black
2. white
3. grey
4. its complement
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Answer: (b) white. Tint = colour + white; shade = colour + black.
Analogous colours are colours that —
1. lie opposite on the colour wheel
2. lie next to each other on the colour wheel
3. are only black and white
4. cannot be mixed
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Answer: (b) lie next to each other on the colour wheel. e.g. yellow, yellow-green, green.

More topics in this chapter

Notes and questions are written by Kundali IQ for practice. They are not official papers; always check the latest official notification for the syllabus and pattern.