9 Most Colorful Beaches in the World

MULTICOLORED
Rainbow Beach, Australia

GREEN
Papakōlea Beach, Big Island of Hawaii

BLACK
Muriwai Black Sand Beach, New Zealand

RED
Red Beach, Santorini, Greece

PINK
Pink Sand Beach, Harbour Island, Eleuthera, Bahamas

PURPLE
Pfeiffer Beach, Big Sur, California

ORANGE
Porto Ferro, Sardinia, Italy

WHITE
Crescent Beach, Siesta Key, Florida

GRAY
Shelter Cove, Humboldt County, California

The list is from here and you can see the photos and read more details there.

They are not in the list but I have been to the Black Beach and Red Beach in Maui.

Red Beach, Maui (it does not seem so but it was red, not too much light there in the evening)

Black Beach, Maui