It's hard to imagine - permanently - a world without colors, empty streets, gray cities.
Without the blue sky, green grass, golden sun.
Colors have always been with humans.
Colors are with us from birth.
A child first recognizes bright, light colors and vivid, contrasting hues, only later seeing exact shapes.
A small human sees thirty times weaker than an adult, as if looking through glass.
An adult, however, perceives colors based on hue, brightness, and saturation.

Knowledge about colors is useful in designing outdoor advertisements, which we often look at
through car windows, through fog, rain or snow, in a very short time and in a hurry.
The decisive role in outdoor advertising is played by bold, intense, contrasting, and saturated colors.
This makes them visible from great distances.

For it to be remembered by the audience, designers use the symbolic
and communicative function of color. Each color contains information that affects the subconscious
and is understood by society at large. It's a code that has been created throughout history by art,
science, and philosophy. Colors affect emotions through their assigned meanings and symbolism, triggering specific reactions.
They contain the potential to unite groups, companies, and even nationalities. Hence, in the identity of respectable businesses, there are leading colors promoting the company or brand, telling a story about their values,
approach to customers, and even their sector of activity.

You can read more about this topic on the website:
http://populi.pl/wez-mnie-czyli-o-czym-mowia-kolory-opakowan-brandingu/

Depending on the division into warm and cool colors and their saturation level, color influences consumer moods. Mixed, muted, dark colors largely depress, while bright, warm, bold colors improve mood and release energy.
Financial institutions, offices, and banks often use navy blue, blue, or turquoise, thus strengthening the sense of security, stability, and balance.
Meanwhile, sports companies, clothing brands, and energy drinks largely use red, orange, and yellow, enhancing activity, joy, and passion.
Black is used to promote elegant, exclusive, mysterious brands, while white is associated with innocence, purity, and freshness.
When designing, however, one must remember that depending on culture and continent, colors can have opposite meanings. In Europe, black is the color of mourning, while in China it's white.

Through experiments with color dispersion, simultaneous contrast was also discovered. Color always exists in relation to another color,
therefore the same red on a gray color will be perceived differently than on white. Combining more than one color leads to greater ambiguity in visual communication.
For those interested in the meaning of specific colors, I refer you to the website: http://www.kolorystyka.pl/index.htm

Beyond the generally recognizable meaning of colors in design, fashion, or art, we also notice a phenomenon such as the trend for specific colors during different cultural periods.
Ancient Egypt and China were fascinated with sun colors and gold, Romans with red, and Greeks with green and blue. According to Pantone Color Institute, Marsala was chosen as the color of the year 2015.

This is - according to Leatrice Eiseman and their team - a color that responds to people's searches and moods. Subdued, charismatic, tasteful, sophisticated yet natural.
Symbolizing wealth and fulfillment.

I definitely think it's a beautiful color, but not necessarily meant for outdoor advertising.
Intense colors work better in outdoor spaces. Therefore, the color of the year 2015 in outdoor advertising might be one of the primary colors:
for example, red or the burgundy color used in Jet Line's identity.