I have always felt that the colors purple, red, pink, orange, and yellow perfectly match the flavors grape, cherry, strawberry, orange, and lemon. Grape tastes

I have always felt that the colors purple, red, pink, orange, and yellow perfectly match the flavors grape, cherry, strawberry, orange, and lemon. Grape tastes much darker than lemon, cherry tastes darker than strawberry, etc. Is this synesthesia, or is it just learned association?