bright blue

Từ điển Oxford Learners Wordfinder Dictionary

adjective

of a deep somewhat purplish blue color similar to that of a clear October sky (Freq. 1)
- October's bright blue weather
• Syn:
azure, cerulean, sky-blue
• Similar to:
chromatic
• Derivationally related forms:
cerulean (for: cerulean), azure (for: azure)