Yellow stands for enjoyment, happiness, optimism, idealism, imagination, hope, sunshine, summer and philosophy;
Blue represents: peace, calmness, stability, harmony, unity, trust, truthfulness and self-confidence;
Orange stands for: energy, balance, warmth, enthusiasm, trembling, frankness, flame, concern and demand;
Green represents: nature, environment, health, good luck, renewal, youth, hard work, spring, generosity and richness;
Purple represents: spirituality, nobility, ceremony, mystery, transformation, wisdom, inspiration and cruelty;
White represents: respect, purity, conciseness, cleanliness, peace, modesty, accuracy, innocence, youth and birth;
Black represents: strength, profundity, formality, elegance, wealth, mystery, fear and devil;
Gray represents: safety, reliability, intelligence, fixity, modesty, dignity, maturity, group, conservatism and practicality;
Brown stands for: earth, fireplace, home, outdoors, reliability, comfort, endurance, stability and simplicity.
I think red should represent your mood.