Well, I was on the point of saying " 'Avana' isn't a colour at all" and following that with " 'Avana' isn't even a proper word", but I thought I'd Google it first. It turns out that there IS a colour which can be described as 'Avana', but it isn't white: apparently it's a reddish light brown - also known as 'tan'. It's named after the city of 'Havana' in Cuba. Cuba is famous for its tobacco and cigars, so perhaps it's the tobacco-like colour which inspired the name. As far as I know, it's used mainly in art and in technical contexts.

You will hear this color mentioned rather often in Italy. It is a light tan color, darker than beige though. Have a look at this example (https://encycolorpedia.it/e0cdb7.svg) or try HEX #e0cdb7