Order of Color Word Appearance

In one of Cecil’s columns ( http://www.straightdope.com/classics/a2_168b.html ) there is a discussion about the order of color words appearing in a language. The classical Greeks are said to have only had words for four colors: black, white, red, and yellow. I don’t read Greek, but I have read translations of the Homeric sagas, and I clearly remember that the goddess Athene was often described as gray-eyed. But as gray isn’t supposed to come up until the seventh color, at the earliest, this seems to be a counter-example to the theory. Does anyone who can actually read the Greek care to enlighten me as to whether that is an accurante translation from The Iliad and/or The Odessey?

I remember Athena always being described as Bright Eyes. Possibly some funkiness with the translation?