This is interesting to me. I have very green eyes - they aren’t hazel or anywhere near blue. But my Bolivian friend always referred to my eyes, in Spanish, as ‘azul’, and said that her father’s eyes were the same color...
-JT
my understanding from the little I looked into it is that every language developed this differentiation between blue and green later in their development. I don’t have the references, just discussions with profs from the past. (80s-90s)