Chloris
Isis is the Greek goddess of rainbows.
Rhea is a goddess, her 'color' depends on the individuals imagination.
Goddess Lakshmi is often associated with the color red, which symbolizes wealth, prosperity, and fertility.
Persephone, being a goddess, could change the color of her eyes at will.
There was no significant Greek god of color, however, there was Iris, goddess of the rainbow and delivering messages. Therefore, she was technically the goddess of color, as she controls the rainbow, which represents all of the colors we can see.
blue
purple
No such god. The closest you will get is Iris, the rainbow goddess.
white
Greek myth does not give Hecate a eye color.
I believe that they are either green or brown
Arthapratisamvit is a Buddhist Goddess of logical analysis.She is associated with the color green.