Sky-blue

The answer to the crossword question “Sky-blue is AZURE” is simply the word “azure” itself. Azure is a shade of blue often associated with the color of a clear blue sky, giving rise to the iconic phrase “sky-blue“. The word “azure” can be used both as an adjective, to describe something as being a sky-blue color, and as a noun, to refer specifically to the blue color itself. In the context of the crossword puzzle, the clue is intended to prompt the solver to provide a single word answer that describes the color of the sky on a clear day.