RED: 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 is energizing. It excites the emotions and motivates us to take action. It signifies a pioneering spirit and leadership qualities, promoting ambition and determination.
Being the color of physical movement, the color red awakens our physical life force. Red Positive keywords include: action, energy and speed, attention-getting, assertive and confident, energizing, stimulating, exciting, powerful, passionate, stimulating and driven, courageous and strong, spontaneous and determined.
Heart Symbol: The heart symbol or "heart shape" (♥) is an ideograph used to express the idea of the "heart" in its metaphorical or symbolic sense as the center of emotion, including affection and love The combination of the "heart shape" and its use within the "heart" metaphor developed at the end of the Middle Ages.
The first known depiction of a heart as a symbol of romantic love dates to the 1250s. It occurs in a miniature decorating a capital S in a manuscript of the French Roman de la poire. In the miniature, a kneeling lover (or more precisely, an allegory of the lover's "sweet gaze" or douz regart) offers his heart to a damsel.