Step 1: Understanding the Concept: The Munsell colour system is a standardized way to specify colours based on three distinct dimensions. Furthermore, general colour theory classifies colours by how they are mixed.
Step 2: Detailed Explanation:
Two aspects of colour in the Munsell system:
A designer would use any of these three dimensions (mentioning any two is sufficient):
1. Hue: This is the actual name of the colour family (e.g., Red, Blue, Green). It is the basic identity of the colour.
2. Value: This describes the lightness or darkness of a hue. A designer adjusts value by adding white to create a 'tint' (lighter) or adding black to create a 'shade' (darker).
3. Chroma (Intensity): This refers to the purity, brightness, or dullness of a colour. A high chroma colour is vivid and pure, while a low chroma colour is muted or greyed out.
Elaboration on the Classification of Colours:
Colours are fundamentally classified into three categories based on mixing:
1. Primary Colours: These are the base colours that cannot be created by mixing any other colours together. In pigment theory, these are Red, Yellow, and Blue.
2. Secondary Colours: These are created by mixing equal amounts of two primary colours. For example, Red + Yellow = Orange; Blue + Yellow = Green; Red + Blue = Violet/Purple.
3. Tertiary Colours: These are formed by mixing a primary colour with an adjacent secondary colour on the colour wheel (e.g., mixing primary Yellow with secondary Green creates Yellow-Green).
Step 3: Final Answer: The designer uses Hue and Value (or Chroma), and colours are classified as Primary, Secondary, and Tertiary.