Syllable division and stress derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
sky-blue is a noun and adjective meaning "a light shade of blue". It carries 2 recorded senses.
of a deep somewhat purplish blue color similar to that of a clear October sky
“October's bright blue weather”
Definitions, synonyms and semantic relations for sky-blue come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.