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Colour theory for secondary education

Published in: Education
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  1. 1. COLOUR
  2. 2. PYSICAL THEORIE OF COLOUR Color originates in light. Sunlight, as we perceive it, is colorless. In reality, a rainbow is testimony to the fact that all the colors of the spectrum are present in white light.
  3. 3. How the Eye Sees Colour "Color is the visual effect that is caused by the spectral composition of the light emitted, transmitted, or reflected by objects.“ 1. All the "invisible" colors of sunlight shine on the apple. 2. The surface of a red apple absorbs all the colored light rays, except for those corresponding to red, and reflects this color to the human eye. 3. The eye receives the reflected red light and sends a message to the brain.
  4. 4. Additive and subtractive Color System • Additive colour system • Subtractive Color System Mixture of primary light colours- White This color model is used in computer monitors, television sets, and theater. Mixture of primary pigment colours Black This color model is used in the print industry
  5. 5. Additive Color System Red - Green - Blue (RGB) •The light primaries colours are red, green and blue. •We call these colours primary because we cannot get them from other coloured lights. •We get secondary colours when we mix two primary colours. •We light white light when we combine all these colours of light. Blue+Green= Cyan Blue+red= Magenta Green+red= Yellow Primary colours Subtractive Color System
  6. 6. Subtractive Color System (CMYK ) Cyan - Magenta - Yellow - Black They painst we use are made of coloured power mixed with different subsances. (Pigment+ Binder) The primary colours pigments are: cyan, magenta and yellow. When we mix colour pigments it is actually subtractive because we are reducing the amount of light from the resulting colour. We get a black surface when we put all the colour pigments together.
  7. 7. The Color Wheel
  8. 8. The Color Wheel Primary Colors: Magenta, yellow and Cyan In traditional color theory (used in paint and pigments), primary colors are the 3 pigment colors that can not be mixed or formed by any combination of other colors. All other colors are derived from these 3 hues. Secondary Colors: Green, orange and purple These are the colors formed by mixing the primary colors. Tertiary Colors: Yellow-orange, red-orange, red-purple, blue-purple, blue-green & yellow- green These are the colors formed by mixing a primary and a secondary color. That's why the hue is a two word name, such as blue-green, red-violet, and yellow-orange.
  9. 9. Complementary colours: Complementary colours are pairs of colours of opposite hues. We say a primary colour is complementary to a secondary one when it does not form part of the secondary colour’s mixture Complementary colours appear diametrically opposite each other.
  12. 12. ACTIVITY 2: PAINT A 12 COLOURS COLOUR WHEEL, feel free to design your own colour wheel
  13. 13. ACTIVITY 3: VIEWFINDER Select a work of art (from any of the art movements we study in class) print it, bring it to class and choose an area. You will reproduce that area in your artbook.
  14. 14. ACTIVITY 4: INTERPRETATION OF A WORK OF ART Select a work of art (from an art movement that you like, that you identify with) print it, bring it to class and DO AN ORIGINAL AND CREATIVE INTERPRETATION OF THAT WORK. For example: