Question

Which of the following is a primary colour ?

• A. Black
• B. Blue
• C. Green
• D. Yellow Ochre

Hint:

Traditional primary colours are Red, Blue, and Yellow. These colours form the basis of the colour wheel.

Answer 1

The Correct Option is B

Concept: Primary colours are the fundamental colours that cannot be created by mixing other colours together. In traditional colour theory, the primary colours are: \[ \text{Red, Blue, and Yellow} \] These colours are used to create secondary and tertiary colours through mixing. The question asks which option belongs to the category of primary colours.

Step 1: Understanding primary colours. Primary colours are considered the base colours of the colour wheel. They are important because:
• Other colours are formed from them
• They cannot be produced by combining other pigments
• They form the foundation of colour theory

Step 2: Analyzing Option (A) Black. Black is considered a neutral colour rather than a primary colour. It does not belong to the traditional primary colour group. Hence, Option (A) is incorrect.

Step 3: Analyzing Option (B) Blue. Blue is one of the three traditional primary colours. It cannot be created by mixing other colours in standard colour theory. Therefore, this option is correct.

Step 4: Analyzing Option (C) Green. Green is a secondary colour formed by mixing: \[ \text{Blue + Yellow} \] Hence, Option (C) is incorrect.

Step 5: Analyzing Option (D) Yellow Ochre. Yellow ochre is an earthy pigment shade and not one of the standard primary colours. Hence, Option (D) is incorrect. Final Conclusion: The primary colour among the given options is: \[ \boxed{\text{Blue}} \] Therefore, the correct option is: \[ \boxed{(2)} \]