Colour

Colour

1. Definition:

   • forms part of the real world, nature and objects

2. Additive blend or coloured lights

   • Primary school
     • red
     • blue-violet
     • green
   • Complementary colours
     • Yellow + violet= white or light grey
     • magenta + green= white or light grey
     • Cyan + red= white or light grey
   • Secondary colours
     • Red + green= yellow
     • Green + blue-violet= cyan
     • Red + blue-violet= magenta

3. Colour perception

   • When a body looks white, this is because it receives all the basic colours of the spectrum (red, green and blue) and sends them back reflected.
   • When a body looks black, this is because it receives all the basic colours of the spectrum (red, green and blue) and does not reflect any, i.e. it absorbs them all
   • When a body is yellow, this is because it receives all the basic colours of the spectrum (red, green and blue), absorbs the colour blue and reflects the colours green and red;
   • When a body is red, this is because it receives all the basic colours of the spectrum (red, green and blue), absorbs the colours blue and green and only reflects the colour red.

4. Subtractive blend or coloured pigments

   • Primary colours
     • Magenta
     • Yellow
     • Cyan
   • Complementary colours
     • Blue-violet + yellow= black
     • Green + magenta= black
     • Red + cyan= black
   • Secondary colours
     • Cyan + magenta= blue-violet
     • Magenta + yellow= red
     • Yellow + cyan= green

5. Qualities or properties of colour

   • Tone
   • Value
   • Saturation

6. The colour wheel

   • Primary (yellow)
   • Secondary (red)
   • Tertiary (orange)

7. Cool and warm colour palettes

   • Colour palettes

8. Creating colour mixtures

   • Colour harmony
   • Colour contrast

9. Colour classification systems

   • Hickethier's system
   • Ostwald system

10. Symbolism of colour

    • White (absolute, unity, innonece...)
    • Black ( evil, mistery, making a error..)
    • Yellow (envy, rage, cowardilness..)
    • Red ( hapinnes, action, conflict..)
    • Green (intelligent, social people..)
    • Blue ( intangible, depth, cold..)
    • Violet (virtue, lucidity, reflection..)

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