Donald Ahrens, the author of a book about meteorology said that a rainbow is “one of the most spectacular light shows observed on earth”. A rainbow is an interesting phenomenon that causes a spectrum of light to appear in the sky. Rainbow colors are used for a lot of things, even for logo design.
Creating a logo means creating a brand perception, a process that may be fairly difficult sometimes. Nonetheless, for a few logo designers this is fun and craze rather than a job.
Some of them try to choose something to inspire audiences and rainbow colors are perfect. Logo designs based on the colors of the rainbow are vivid, nice and at the same time, they are different from the usually logos. Logo designers use a combination of rainbow colors and symbols to create a unique logo that communicates the brand’s message.
Additionally, logos based on rainbow colors catch the eye, so there are increased chances to be noticed by people. The diversity of logos using rainbow colors is very wide, featuring a unique quality that compliments the brand and message.
Details are also very important. A logo designer has to be careful because if details are not used properly, the result may be meaningless eye-candy rainbow logos.
These logos have increased printing costs, but they look very trendy and are wonderful, colourful creations. They inspire, catch the eye and amaze.

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Red is the rainbow color that has the longest wavelength, being also the nearest visible light to infrared in the electromagnetic spectrum. It refers to vitality and activity, but also to energy, security, enthusiasm, interest, and passion.
Orange is the color of creative energy, combining red and yellow. Just like red, orange is also a dynamic energy. However, it is more controlled and thoughtful. It means creativity, equilibrium, playfulness, relief from boredom, and exploration on a practical level.
Yellow is the color of wisdom. It is associated with the sun, therefore also brining about life giving and sustaining energy. With its brightness and light, yellow also means clarity of thought, better decision making skills, orderliness, and memory improvement. It also alleviates confusion.
Green is the color of life, nature and balance. It is a merger of yellow and blue, being located at the point of color balance on the color spectrum, which is midway between red and violet. It suggests harmony, health, balance, abundance, growth, expansion, and sympathy.
Blue stands for spirituality. This rainbow color makes our mind wander at oceans, seas and skies. It is also the color of spirituality and Divinity, brining about peace, calm, understanding and relaxation. Blue also enhances the easy communication flow.
Indigo is the color of infinity and has the power of amplifying the depth and energy of blue. It also symbolizes the bridge between the finite and the infinite, meaning spiritual attainment, wisdom, self-mastery, intuition, psychic abilities, and sudden awareness at the same time.
Violet is considered to be the highest element of spiritual mastery, being the highest specialization of light. It is the merging of blue and red, therefore having numerous meanings, such as sorrow, high spiritual attainment, love for humanity, idealism, imagination, and inspiration. It also integrates other energies for healing purposes.