I normally had it as a subject at university as part of a lecture (it was part of my studies), so it might be valuable for you one day. 😀
🔵 Blue – Widely used by tech companies, banks, and healthcare providers, blue signifies trust, dependability, professionalism, and security.
🟢 Green – Seen in brands to health, sustainability, and the environment, green symbolizes growth, harmony, freshness and nature.
🔴 Red – Utilized by food and beverage companies, as well as in the automotive industry, red represents energy, passion, excitement, and urgency. Sometimes is used in a food industry (KFC, McDonalds, CocaCola).
🟡 Yellow – Commonly used to evoke feelings of optimism, warmth, and creativity, yellow is often found in brands targeting children and promoting fun and happiness.
🟠 Orange – Representing enthusiasm, creativity, and energy, orange is frequently used in brands aiming to stand out and inspire action.