Blue represents meanings of depth, trust, loyalty, sincerity, wisdom, confidence, stability, faith, and intelligence. Blue is the color between violet and cyan on the visible color spectrum. It's a primary color in both RYB and RGB color models. Blue is the color of a clear daytime sky, the deep sea, and the fifth band on a rainbow. Common associations with the color blue include: Calmness and Serenity: Blue is often found in nature such as a calm sea and clear sky, creating a sense of peace. It can help slow the heart rate and breathing, making it a great color to surround yourself with for meditation and relaxation. Blue is often associated with sadness in the English language. Blue is also used extensively to represent calmness and responsibility. Light blues can be refreshing and friendly. Dark blues are more strong and reliable. Something old, something new, something borrowed, something blue. Blue. art by disco stu, 2023.