In heraldry, the colour blue (5)
I believe the answer is:
azure
(Other definitions for azure that I've seen before include "Heraldic blue" , "Bright blue" , "A bright sky-blue" , "Deep sky-blue colour" , "Deep blue colour" .)
I believe the answer is:
azure
(Other definitions for azure that I've seen before include "Heraldic blue" , "Bright blue" , "A bright sky-blue" , "Deep sky-blue colour" , "Deep blue colour" .)