CIELAB (L*C*h)

This is an assessment of colour system that is more usually used to set tolerances once the hue, chroma and lightness limits are established.

While CIELAB (L*a*b*) uses Cartesian coordinates to calculate a colour in a colour space, CIELAB (L*C*h) uses polar coordinates. This colour expression can be derived from CIELAB (L*a*b*). The L*, as before defines lightness, C* specifies chroma and h denotes hue angle, an angular measurement.

The L*C*h expression offers an advantage over L*a*b* in that it is very easy to relate to the earlier systems based on physical samples, like the Munsell Colour Scale.

Applications

  • Chemicals
  • Coatings
  • Edible Oils and Fats
  • Food and Beverage
  • Household Products
  • Petroleum Oils and Waxes
  • Pharmaceuticals and Cosmetics
  • Plastics
  • Sugar Solutions, Syrups and Honey
  • Textiles

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