YOU SAID:

My favorite color is the color yellow because it is the color of bananas.

INTO JAPANESE

私の好きな色はバナナの色なので黄色です。

BACK INTO ENGLISH

My favorite color is yellow because it is a banana color.

INTO JAPANESE

私の好きな色はバナナ色なので黄色です。

BACK INTO ENGLISH

My favorite color is banana, so it's yellow.

INTO JAPANESE

私の好きな色はバナナなので、黄色です。

BACK INTO ENGLISH

My favorite color is banana, so it's yellow.