Most often, blue or black.
Ares Greek god of war. Roman form is Mars
white.Pegasus was given to Hercules and Pegasus is white.The Pegasus was white all over, except for his eyes
Greek dieties eye colors can vary, for example Poseidon's eyes are as blue as the sea and Athena's eyes are gray and filled with wisdom.
In Ancient Greek Mythology, one of the goddesses named Athena, cursed another lower goddess named Medusa forever with an unbinding curse. Athena was jealous due to the fact that a lower goddess recived much attention, so anyone who then on looked at medusa's eyes turned to stone. creating "the stone people"
It is interesting to note Athena is shown with both black and blonde hair. In the Titan's Curse she is seen with black hair, while in The Sea of Monsters she is described as having blonde hair. In the original Greek myths, she has "golden hair" as do all the other gods.
Argus Panoptes
Athena (Greek mythology)
Ares Greek god of war. Roman form is Mars
Cyclopes were the one eyes sons of Poseidon who worked in the forge
Greek myth does not give Hecate a eye color.
Athena, the Greek goddess of wisdom, had gray eyes.
Poseidon can change his eye color as well as shape shift.
Theia is a Titaness, a form of deity, who's symbol is eyes in Greek mythology.
white.Pegasus was given to Hercules and Pegasus is white.The Pegasus was white all over, except for his eyes
Argos isn't considered a god in Greek mythology, Argos is actually a giant with many eyes and he is the son of Arestor. He is also the guardian of the nymph Io.
She hated Hercules/Heracles, After her henchmen died, she put all of his hundred eyes on a peacock and that is her favorite bird.
Greek gods and goddesses could change their features and bodies at will, including eye color.