I’m a blue, what are you?

Although the scientific data is hard to come by, the psychology of colours is something that surrounds us. People have created businesses, websites, you name it based on these beliefs that colours either enhance or encourage certain emotions.

For some, the wavelengths of colours have been involved in connecting them to emotions.

As we know from Newton’s famous colour experiment, all of the different colours have different angles of refraction:

The angle formed by a refracted ray or wave and a line perpendicular to the refracting surface at the point of refraction.”


The colours also have different wavelengths:

“Light is measured by its wavelength (in nanometers). One wavelength equals the distance between two successive wave crests or troughs.”



The colour with the longest wavelength is red at around 665nm. This quality is said to therefore make it a powerful colour. 

Psychology wise, red:

  • Is said to increase your heart rate + blood pressure
  • Encourages positive feelings of warmth, excitement, love and passion
  • Also represents negative feelings of hate, violence and domination
  • In Chinese & Indian cultures red signifies good luck 

People with red personality type are said to be energetic, passionate people who love attention. They dream big and word hard tomakes those dreams a reality. Working the best with and around other people, red personalities are competitive and original.



The yellow wavelength is also long at around 600nm and creates an emotional stimulus. Yellow, like Goethe thought, is said to be the most psychologically strong colour.

Psychology wise, yellow:

  • Can stimulate mental processes and activate memory
  • Encourages positive feelings of joy, energy, inspiration and friendship
  • Also represents negative feelings of uncertainty, caution and fear
  • In Egyptian culture, yellow is symbolic of prosperity 

wavelength yellow
People with the yellow personality type are energetic and fun people to be around. They are extremely independent people who dream up big dreams but sometimes lack the focus to make these dreams real. Yellow personalities prefer a smaller group of friends and prefer mental tasks like puzzles to physical ones.



The wavelength of green is around 550nm, situating it in the centre of the spectrum. This gives green the colour of balance.

Psychology wise, green:

  • Is said to stimulate your pituitary gland and decrease allergy symptoms
  • Encourages positive feelings of freedom, generosity, youth and health
  • Also represents negative feelings of laziness, envy and frankness
  • In religions such as Hinduism and Buddhism, the heart chakra is represented as green


People with green personality type are thought to be the most sincere types of people. They are very open, honest and can see the bigger picture. With great manners and good-timing they can read people well and therefore have large social networks and are supportive, loyal friends to have.



The blue wavelength isn’t anything too special at around 470nm. However blue is the most liked colour across the world. 

Psychology wise, blue:

  • Is said to make food less appetising if eaten off a blue plate as well as lower blood pressure and the rate of your pulse
  • Encourages feelings of goodness, stability, loyalty, acceptance and cleanliness
  • Also represents negative feelings of despair, depression and isolation
  • Blue is the colour of the United Nations Flagwavelengthblue

People with the blue personality type are ultimately looking for peace. They very much value routine and familiarity but work extremely well as both an employee and employer. They enjoy having lots of friends and value both friends and family highly making them reliable and trustworthy people to have around.



The colour with the shortest wavelength is violet (purple) at around 400nm and it’s also the last visible wavelength before ultra-violet rays. This is said to create associations with time, space & the universe.

Psychology wise, purple:

  • Is calming and can increase feelings if spirituality and reduce anxiety
  • Encourages positive feelings of creativity, ambition, wisdom and luxury
  • Also represents negative feelings of grief, solitude, vanity and secrecy 
  • In Ancient cultures, purple represented wealth and in Catholicism purple is representative of Lent

People with purple personality type are generally more introverted people who are creative and like to dream. They like to be different from other people and are very giving people and like to see the best in everyone. Purple personalities are gentle and intuitive people. 

To delve more into what colour your personality is, you can take a test!
Just scroll on down and click on the big red “START TEST” button!

I got blue, what are you?


I admit, I am a sucker for finding information that can “match” my personality to colours, songs, breeds of puppies and celebrities, my star sign, you name it. 

However, I don’t truly believe that in spirit I am in fact a golden retriever nor do I need to define myself as a colour. 

This is a blog which investigates the psychological traits that are matched to colours as there is a MULTITUDE of resources out there which do it. It’s a bit of fun, it’s fascinating and there is a little bit of science to it! 


4 thoughts on “I’m a blue, what are you?

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