The signature red soles on every pair of Louboutin are not just by chance. Red is a color that expresses power, courage and passion as said by color specialist Leatrice Eiseman (link).
And when it comes to appetite, red wins over all. Red is proven to raise heart rates and blood pressure causing people to feel more hungry. It is no coincidence most fast food restaurants have the color red all over their restaurants.
Green usually portrays envy and wealth, but it can also be used to represent nature and health. Green has been proven to increase positive emotions and has relaxing effects (link).
Blue is a color used to signify logic, trust and wisdom. This is perhaps why many political candidates wear blue shirts, ties and suits. Blue can make someone appear trustworthy and intelligent, while also producing a calming effect (link).
Yellow is most commonly known to produce feelings of happiness, warmth and friendliness. Like red, yellow is an intense color that is also known to increase hunger according to Spoon University (link).
With so much power in every different color, it is no wonder why many people enjoy hanging bright artwork throughout their homes. Artwork can change the mood of a room and turn a once bleak space into something special.