Pink symbolizes innocent happiness and youthful love. The darker the pink, the more gratitude it means. The lighter the pink, the more desire and youthful passion comes into play.
Some good pink colored roses are Anna, Cadillac, Diplomat, Femma, and Clear Ocean.
White symbolizes purity, reverence, and innocence.
White roses can mean eternal love to your partner.
Purple symbolizes royalty, or in better terms, respect and admiration. Lavender is a close similarity to Purple, but lavender is for a woman in her prime and mature.