Colour booklet

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colourMixing coloursWe can mix colours in two ways: with light and with colour. Mixing with coloured light iscalled additive mixing. The more colours that are added, the lighter the result. All thecolours together form white light.Mixing with paint is called subtractive mixing, which in this context means that light istaken away. The mixed colour is always darker than the lightest of the colours withwhich it has been mixed.Every colour-giving substance absorbs a certain section of the spectrum. If we mix twocolours, different sections of the spectrum are absorbed. Only the jointly reflectedsection is left.We shall mix colours with paint, i.e. subtractively. We shall do this according to thethree-colour mixing system and the six-colour mixing system. We shall also look atthe phenomenon of optical mixing of colours.Three-colour mixing systemPrimary coloursWith the three primary colours lemon yellow, cyan (blue) and magenta(red) we can mix any colour hue we wish. These colours are calledprimary because they cannot be mixed from other colours. The principlesof mixing can be learned using primary colours. Talens suppliesa special gouache mixing set. In addition to the primary colours thiscontains white and black. The Ecoline range also contains the primarycolours.pagen 13
colour[ 16]To begin with, we mix yellow with blue, blue with red and red with yellow. That gives usgreen, violet and orange respectively (ill. 16). The proportion in which the colours aremixed depends on the tinting strength of the paint. It is a good idea to begin by mixingsmall quantities to avoid wasting paint.pagen 14
Page 1 and 2: colourA guide to colour and colour
Page 3 and 4: colourIntroductionThe world around
Page 5: colour[2]These substances have the
Page 8 and 9: colourLightfastnessLightfastness va
Page 10 and 11: colourProperties of coloursThere ar
Page 12 and 13: BrightnesscolourThe brightness of a
Page 16 and 17: colour[ 17 ]If we mix the colours n
Page 18 and 19: colourPrimary colours with white an
Page 20 and 21: colourThe violets mixed from cyan b
Page 22 and 23: Optical mixing of colourscolourOpti
Page 24 and 25: colourGlazing mixingIn painting gla
Page 26 and 27: colour12If we next look at the colo
Page 28 and 29: Saturation and suggesting spacecolo
Page 30 and 31: colourIll. 43The saturation of the
Page 32 and 33: colourand saturated. The further to
Page 34 and 35: colourIll. 49The red ground has bee
Page 36 and 37: colourProduct Primary colours Addit
Page 38: P.O. Box 4, 7300 AA Apeldoorn, NLPr

Colour booklet

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