Some colors are instantly recognizable wherever you are. It can be said that these colors have positive effects on human psychology.
The first effect that colors have on people is the effect of warmth and coldness. Colors close to yellow create a warm perception, while those close to blue create a cold perception. Colors with a warm effect appear closer to people. Cooler colors appear further away.
According to psychological studies, certain colors are encoded into certain emotions. Just as red connotes blood and threats. Physiological experiments have shown that blue light slows down the production of melatonin and keeps people more awake and fit even at night.
Everyone has an answer they can give when asked about the colors that make them happy. Express that it either energizes, cheers, or reminds you of a good memory or taste that has remained in your mind. This psychological phenomenon is completely personal and its generalization is not correct.
Although the perception of colors is partially subjective, some color effects have universal meanings. These warm colors activate emotions ranging from friendliness and comfort to anger and hostility. Those in the blue part of the spectrum are known as cool colors and consist of blue, purple and green.

Colors and their meanings
white as ice and snow… Purity, clarity, innocence and grandeur come with white, along with peace, lightness and cleanliness. On the other hand, white is also unapproachable, stands for cool reserve, vulnerability and surrender.
black is dark without light the color of the night. It means sadness, inscrutability, immutability, fear and mystery, fear, emptiness, secrecy and death. But black also looks dignified and stands for respect and solemnity.
Gray is a cloudy sky on a cloudy day. Complete neutrality, caution, reserve, willingness to compromise, dignity and devotion are closely associated with grey. Gray is hardly noticeable and occasionally looks boring and monotonous. Insecurity and depression are gray, as is confusion.
red is the color of fire it attracts attention is full of vitality and energy represents love and passion and sexuality. Red is also aggressive and upsetting means anger, brutality, blood, war and last but not least is the color of the devil.
Orange is the color of the setting sun and a symbol of optimism and joie de vivre. Orange is a signal for open-mindedness, sociability, youthfulness, health and self-confidence. Light-heartedness, obtrusiveness and debauchery are also conveyed via the orange.
yellow is the color of the sun it conveys light cheerfulness and joy stands higher knowledge wisdom reason and logic dirty shades of yellow carry negative associations such as illness deceit revenge jealousy danger pessimism egoism avarice and envy
green is the color of the vegetation of meadows and forests. Green calms and represents generosity, security, harmony, normality, hope and renewal of life. However, it also carries negative meanings such as envy, indifference, stagnation and fatigue
Blue is beautiful, it is the color of the sky and the sea and conveys calm, trust, peace, loyalty to duty, beauty and longing, but blue also stands for dream dancing, coldness, negligence and melancholy
violet is a dignified color. It is associated with inspiration, magic, mysticism and art. It is considered extraordinary and extravagant and is also associated with piety, sacrifice and penance. Negative effects of the Violet are proud arrogance and immorality.