Wanderlust World Wanderlust World The ocean's blue color results from several light-interaction processes:
Water molecules absorb red wavelengths; remaining light appears blue-green.
Water molecules and microscopic particles scatter shorter (blue/violet) wavelengths more effectively.
Clear blue sky reflects off the surface, enhancing the blue hue.
Coastal waters appear greener/turquoise due to phytoplankton; deep ocean is darker blue due to greater light absorption.