Passion
The meaning of tulips is generally perfect love. Like many flowers, different colours of tulips also often carry their own significance:
Red: passion, love, and lust 
They can also mean “believe me,” or “my feelings are true.”
Pink: congratulations good luck
Orange: compassion, understanding, and sympathy
and well wishes
Yellow: happiness, cheerfulness, and hope
Purple: royalty and elegance.
White: purity, honour, faith and holiness, forgiveness