Homer’s descriptions of color in The Iliad and The Odyssey, taken literally, paint an almost psychedelic landscape: in addition to the sea, sheep were also the color of wine; honey was green, as were the fear-filled faces of men; and the sky is often described as bronze.Further discussion in an interesting column at the Clarkesworld sci-fi e-magazine.
It gets stranger. Not only was Homer’s palette limited to only five colors (metallics, black, white, yellow-green, and red), but a prominent philosopher even centuries later, Empedocles, believed that all color was limited to four categories: white/light, dark/black, red, and yellow. Xenophanes, another philosopher, described the rainbow as having but three bands of color: porphyra (dark purple), khloros, and erythros (red).
The conspicuous absence of blue is not limited to the Greeks. The color “blue” appears not once in the New Testament, and its appearance in the Torah is questioned (there are two words argued to be types of blue, sappir and tekeleth, but the latter appears to be arguably purple, and neither color is used, for instance, to describe the sky).
With a tip of the blogging cap to the elves at No Such Thing as a Fish for mentioning this in a recent podcast.