The rainbow is composed of 7 colors, which are presented in this order, from the outside in: red, orange, yellow, green, blue, indigo (or indigo) and violet.
Color psychology, a study of psychology that explains how colors activate human sensations and emotions, developed the meaning of colors as follows:
1ª. Red
Considered a warm and intense color, red is associated with heat, love, action, vigor and danger. It is also responsible for provoking strong and intense emotions and feelings and conveying a sensation of excitement and energy.
Learn more about the meaning of Red color.
2ª. Orange
The orange color is associated with fun, pleasure, sociability and enthusiasm.
Find out more about the Orange color.
3ª. Yellow
The yellow color is associated with joy and optimism, as it is related to the sun. It is linked to enlightenment and understanding and can also provide a sign of attention.
Learn more about the meaning of yellow color.
4ª. Green
The green color conveys feelings of hope and security, in addition to providing tranquility. As it is the same color as nature and the environment, green is also related to naturalness.
Learn more about green color.
5ª. Blue
The blue color represents passivity, coldness, divinity and intellectual characteristics. It is also capable of transmitting calm and patience and because it is the same color as the sea and the sky, it is related to depth and infinity.
See more about blue color.
6ª. Indigo (Indigo)
Because it was used in the royalty of the ancient Indian empire (from which its name comes), it expresses wealth and knowledge.
7ª. Violet
Also called purple, the color violet is related to spirituality and mystery. Some of its tones also convey power, sobriety and the feminine.
See more about purple color.
Also find out what is the meaning of rainbow.
Source:
HELLER, Eva. The psychology of colors. 1st edition. São Paulo: Gustavo Gili Brazil, 2013.