Colour booklet

colour[ 27]By mixing adjacent colours the circle can be further expanded (ill. 27).By adding white, grey or black the brightness and saturation of each colour hue can of course bechanged, just as in the three-colour mixing system.The six-colour mixing system also offers more opportunities for approximating black. The yellows, redsand blues can be mixed in different combinations. The proportion in which they are mixed determines thecolour hue of the dark grey. If we want to mix a grey without a colour hue, a neutral colour, those proportionsmust be very precise. The darkest neutral grey is obtained by mixing all six colours. This grey is soclose to black that the difference can only be seen when compared with pure black paint.pagen 20