As you know that there are many types of Roses but its use for a hidden language in its colour also. let me tell you that
Red Roses - Love and passion

White Roses - True love, purity of the mind and reverence

Yellow Roses - Friendship, celebration and joy

Pink Roses - Friendship or Sweetheart, admiration

Peach Roses - Desire and excitement or appreciation

Lilac Roses - Love at first sight and enchantment

Coral Roses - Desire

Orange Roses - Enthusiasm and desire

Black Roses - Farewell or "It's Over"

Bouquet of Red and Yellow Roses: Happiness and celebrations
Bouquet of Red and White Roses: Bonding and harmony
Bouquet of Yellow and Orange Roses: Passion
Hopefully you choose best colour of Rose to say something to your special one. God Bless You