I don't have synesthesia, but I definitely associate pretty much every Greek letter with a color. Most of them are accurate, but some are more vague. For example, the letter Rho (the one that looks like a "p", its after Pi) I definitely associate with a warm color, like red or orange, but nothing really hit the mark perfectly. It was the same with Theta, Tau, and Phi. I suspect the reason for me having this synesthesia like phenomenon with Greek letters is because I learned them from such a young age. I actually memorized the whole Greek alphabet before the English one, according to my parents. I was obsessed with them because of how they look almost alien, but also familiar in some way. My favorite letters are Phi and Omicron. For those who don't know, there is a letter called Sigma. It's the 18th letter, between Rho and Tau. LETTERS IN ORDER (English Pronunciation) Alpha, Beta, Gamma, Delta, Epsilon, Zeta, Eta, Theta, Iota, Kappa, Lambda, Mu, Nu, Xi, Omicron, Pi, Rho, Sigma, Tau, Upsilon, Phi, Chi, Psi, Omega. FUN FACTS: In Greek, the letter Beta actually makes a "V" sound. The letter Gamma makes a loosely-held G sound. The letter Delta actually makes a "Th" sound, like in "They", even though, in English, it makes a "D" sound. The letter "Chi" makes a choked "H" sound. The letter Psi makes a "Ps" sound, having no equivalent to an English letter. In the Greek alphabet, there are 3 distinct letters that all make the "Ee" sound, those being Eta, Iota, and Upsilon. In the Greek alphabet, there are also 2 distinct letters that make the "oh" sound, being Omicron and Omega.
Credit to the ancient Greeks, I guess.
