Step 1: Understanding the Concept:
Colour theory (Prang and Munsell systems) defines the three fundamental physical dimensions of colour: Hue, Value, and Intensity/Chroma.
Step 2: Detailed Explanation:
In the dimensions of colour:
1. Hue: The name of the colour (e.g., red, blue, green).
2. Value: The lightness or darkness of a colour (tints and shades, altered by adding white or black).
3. Intensity (Chroma Saturation Brilliance): The purity, brightness, or dullness of a colour. A colour at full intensity is brilliant and vivid, whereas adding its complementary colour dulls its intensity.
Step 3: Final Answer:
Therefore, the brilliance of colour is Intensity, corresponding to option (B).