- azure, cerulean, sky-blue, bright blue - of a deep somewhat purplish blue color similar to that of a clear October sky; "October's bright blue weather"
Antonym: achromatic (indirect, via chromatic)
- azure, cerulean, sapphire, lazuline, sky-blue - a light shade of blue
--1 is a kind of blue, blueness
Derived form: verb azure1