Blue heavens are often associated with clear skies, peacefulness, tranquility, and a sense of calm. Synonyms for this phrase include azure firmament, cerulean expanse, sapphire skyline, baby blue ceiling, and cobalt canopy. Other terms that are similar in meaning include skies of blue, turquoise vaults, powder blue heavens, deep sky blues and sky blue canopy. Whether you are looking to describe a beautiful blue sky during the day or a clear night sky full of stars, these words can help add depth and vividness to your imagery. Overall, the phrase Blue heavens conjures a sense of wonderment and relaxation and through synonyms, it enhances this emotion.