The impact of color, appearance, and mood. Seeing colors is our own perception and it is a subjective experience.
Color symbolism plays an important part of human life, understanding the symbolism of color is vital for marketers. Color symbolism is a learned behavior but it has an associative power that affects how we perceive that color and the mood or emotion that is produced by it, for  example, red conveys excitement, green helps promote relaxation, and brown is the cozy color that creates an atmosphere of comfort. Given that color symbolism is learned, some colors  can convey universal messages while others vary by ethnicity, cultural, or  socioeconomic background.

RED Strong Emotions/Warmth/Love/Anger/Danger/Boldness/Excitement 
We are seeing more moods evoked by brands and their communication through the impact of color, packaging and appearance: the likes of surprise, revelation, discovery, elation, joy and other universal emotions.

Not simply mood association, color is also found to considerably affect our other senses: what we hear, taste, smell and touch.
In Gestalt psychology the entire organism is looked upon as a unity and the centers for processing sensory information are linked to each other, leading to chain of reactions.

ORANGE Spicy/Stimulates Appetite/Vitality/Cheerful/Sunny/Affordability
Orange is a power color, containing some of the fiery energies of red, but is gentler with a more creative spirit. It is one of the healing colors. It is also said to increase craving for food. It stimulates enthusiasm and creativity. Orange means vitality with endurance.

Some examples to show how color affects to other senses:
Perception of Temperature
The color of a room will affect the perception of temperature. In an experiment a  group of people was placed in a red-orange painted room for some time and the other  group of people were in a blue-green painted room, the temperature of the two rooms  were thesame. It was found that most people in the red-orange room felt warm and the  people in the blue-green room felt cooler. Application of this sensory association is often used in interior design, where location and use of energy is considered.

YELLOW Attention Grabbing/Comfortable/Upbeat/Lively/New/Unusual
Use yellow in communication or product when you want your consumer to:
Feel clarity/decisiveness/attentiveness
Gain relief and energy from ‘burnout’ and exhaustion
Remember with stronger concentration

Perception of Noise and Sound
Color also has an effect on the perception of noise and sound. Studies show that the  bright warm colors are associated with loudness and the opposite for cool colors. It may  be because people mentally connect a loud red with one of high saturation and the high  saturated hues are usually considered to be high-pitched and shrill sounds. These findings  are particularly useful in ambiance and decor for venues such as clubs, restaurants, transportation and even event planning.

BLUE Calming/Constancy/Loyalty/Reliability/Melancholy/Energy Flow
Blue Energy-Blue gives a feeling of distance. Artists use it to show perspective. This is a good way to understand the energy of the color blue – allowing us to look beyond and increase our perspective outward. It contains a cool vibration that is helpful to communication. Color connects with the viewer far more directly than words or numbers.

Association of Odor and Taste
Some studies also found that colors are associated with smell and taste. For instance,  pink is associated with sweetish, yellow is sour, orange is strong, and green is sour and  juicy. It is also found that pink, lavender, pale yellow and green have pleasant smell.  Candy is often in pink packaging. On the other hand, blue is found  to be an appetite suppressant, avoid using it in restaurant or food packaging unless you use it for weight-loss, for example, blue  light in refrigerator will definitely work!