chromatic color, chromatic colour, spectral color, spectral colour - a color that has hue

azure, cerulean, lazuline, sky-blue, sapphire - a light shade of blue

powder blue - a dusty pale blue color

steel blue - a grayish blue color

Prussian blue - a dark greenish-blue color

dark blue, navy blue, navy - a dark shade of blue

cobalt blue, greenish blue, peacock blue, aqua, aquamarine, turquoise - a shade of blue tinged with green

purplish blue, royal blue - a shade of blue tinged with purple

ultramarine - vivid blue to purple-blue

Payne's gray - any pigment that produces a grayish to dark grayish blue