You should approach this question, as well as any question asking you to pick a colour or other object to represent you, as a way for the employer to gain an insight into your personality. Never answer the question with a random colour you have picked simply because you like it or it’s pretty. This tells the interviewer nothing about you, apart from the fact that you seem uninteresting and uncreative.
Tailor your answer to the job you are applying for – the more creative you are, the better. If you’re applying for a job in a stressful, competitive industry then a good colour could be blue: it implies that you keep your cool and never lose your head in high-pressure situations.
Choose colours that highlight your best qualities and make sure you justify why you chose that colour. Using colours that have warm and friendly connotations are great, but don’t be afraid to pick colours that are unusual – remember there are many shades in the colour wheel.
For example, you could say that you would be a darker shade of charcoal grey because you’re an efficient and quiet worker, a warm person (because darker colours absorb heat from the sun while lighter colours deflect heat), and you think grey is a chic, understated colour that can complement other colours.
Like other wacky questions such as ‘If you were an animal, what would you be?’ there is no singular right answer to this question, so feel free to take it whichever way you want. What you will be judged on is creativity and your analytical and problem-solving abilities.