tradition and their origins go back to biblical times or earlier in some instances. Here are some meanings of flower colors is generally accepted today:
Red-Love, Respect, Passion, Courage
Pink-Perfect happiness, Gentility, Grace, Please believe, Thankfulness, Confidence, Admiration
Yellow- Friendship, Joy, Happiness, Zeal, Jealousy, Try to Care
White-Innocence, Purity, Secrecy, Heavenly, Silence
Peach or Coral- Enthusiasm, Desire, Sweetness, Modesty, Joy
Purple-Faithfulness, Passion, Hope