YOU SAID:

The sky isn't blue, the sky is sky blue.

INTO JAPANESE

空は青くない、空は空青だ。

BACK INTO ENGLISH

The sky is not blue, the sky is sky blue.

INTO JAPANESE

空は青ではなく、空は空青です。

BACK INTO ENGLISH

The sky is not blue, and the sky is sky blue.

INTO JAPANESE

空は青ではなく、空は空青です。

BACK INTO ENGLISH

The sky is not blue, and the sky is sky blue.