• Red is the color of fire and blood, so it is associated with energy, war, danger, strength, power, determination as well as passion, desire, and love. 
• Red is a very emotionally intense color. It enhances human metabolism, increases respiration rate, and raises blood pressure.
• It has very high visibility, which is why stop signs, stoplights, and fire equipment are usually painted red.
• In heraldry, red is used to indicate courage. It is a color found in many national flags. 
• Red brings text and images to the foreground. Use it as an accent color to stimulate people to make quick decisions; it is a perfect color for 'Buy Now' or 'Click Here' buttons on Internet banners and websites. In advertising,
• Red is often used to evoke erotic feelings (red lips, red nails, red-light districts, 'Lady in Red', etc).
• Red is widely used to indicate danger (high voltage signs, traffic lights). This color is also commonly associated with energy, so you can use it when promoting energy drinks, games, cars, items related to sports and high physical activity. 
• Light red represents joy, sexuality, passion, sensitivity, and love.
• Pink signifies romance, love, and friendship. It denotes feminine qualities and passiveness.
• Dark red is associated with vigor, willpower, rage, anger, leadership, courage, longing, malice, and wrath.Brown suggests stability and denotes masculine qualities.
• Reddish-brown is associated with harvest and fall.
  
  
  
   
• Blue is the color of the sky and sea. It is often associated with depth and stability. It symbolizes trust, loyalty, wisdom, confidence, intelligence, faith, truth, and heaven.
• Blue is considered beneficial to the mind and body. It slows human metabolism and produces a calming effect,
• Blue is strongly associated with tranquility and calmness.
• In heraldry, blue is used to symbolize piety and sincerity.  You can use blue to promote products and services related to cleanliness (water purification filters, cleaning liquids, vodka), air and sky (airlines, airports, air conditioners), water and sea (sea voyages, mineral water).
• As opposed to emotionally warm colors like red, orange, and yellow;
• Blue is linked to consciousness and intellect. Use blue to suggest precision when promoting high-tech products.  
• Blue is a masculine color; according to studies, it is highly accepted among males.
• Dark blue is associated with depth, expertise, and stability; it is a preferred color for corporate America. Avoid using blue when promoting food and cooking, because blue suppresses appetite. When used together with warm colors like yellow or red, blue can create high-impact, vibrant designs; for example, blue-yellow-red is a perfect color scheme for a superhero. 
• Light blue is associated with health, healing, tranquility, understanding, and softness.
• Dark blue represents knowledge, power, integrity, and seriousness.

• White is associated with light, goodness, innocence, purity, and virginity. It is considered to be the color of perfection.
• White means safety, purity, and cleanliness. As opposed to black, white usually has a positive connotation.
• White can represent a successful beginning.
• In heraldry, white depicts faith and purity.  
• In advertising, white is associated with coolness and cleanliness because it's the color of snow. You can use white to suggest simplicity in high-tech products.
• White is an appropriate color for charitable organizations; angels are usually imagined wearing white clothes.
• White is associated with hospitals, doctors, and sterility, so you can use white to suggest safety when promoting medical products.
• White is often associated with low weight, low-fat food, and dairy products.