COLOURS

COLOURS

1. ADDITIVE BLEND OR COLOURED LIGHTS

   • Primary colours
   • Secondary colours
   • Complementary colours

2. 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.

3. QUALITIES OR PROPERTIES OF COLOUR

   • Tone
     • The tone is the specific name or attribute given to a colour that makes it distinct. Each tone is given a name. Intermediate values or composites are found within each tone.