Yes, it describes a noun.
As in : This car is blue.
It can be a noun itself when it describes a color (e.g. the blue of the ocean).
It is "anxious."
The shades for the color blue are: turquoise, Antwerp blue, robin egg blue, sky blue, royal blue, sapphire blue, indigo, teal, navy blue, aqua, asul, azure, Alice blue, baby blue, blue, blue-green, bondi blue, Carolina blue, Chartre Blue, cerulean blue, cobalt blue, Columbia blue, cornflower blue, cyan, dark blue, denim, dodger blue, Egyptian blue, electric blue, han purple, international klein blue, Maya blue, medium blue, midnight blue, navy blue, pale blue, Persian blue, Persian indigo, powder blue, smalt blue, steel blue, ultramarine blue, united nations blue, air force blue, brandeis blue, duke blue, majorelle blue, Prussian blue, yale blue, pigment blue, blue bell, wild blue yonder, pacific blue, blizzard blue, ultra blue, blueberry blue, blue bird blue.
Brandeis blue Carolina blue Cerulean Cobalt blue Columbia blue Cornflower blue Dark blue Denim Dodger blue Duke blue Egyptian blue Electric blue Han blue Indigo Intl. Klein blue Light blue Majorelle blue Maya blue Midnight blue Navy blue Periwinkle Persian blue Powder blue Prussian blue Royal blue Sapphire Sky blue Steel blue Ultramarine Yale blue
Democrats are blue.
His favorite color was blue,.
Blue!
blue is called blue because somebody named it blue
Names of blue, partial list.Here are some: turquoise, Antwerp, robin egg, sky, powder, royal, sapphire, indigo, teal, baby, navy, heather, peacock. I found some more:aqua, asul, azure, Alice blue, baby blue, blue, blue-green, bondi blue, Carolina blue, Chartre Blue, cerulean blue, cobalt blue, Columbia blue, cornflower blue, cyan, dark blue, denim, dodger blue, Egyptian blue, electric blue, han purple, international klein blue, Maya blue, medium blue, midnight blue, navy blue, pale blue, Persian blue, Persian indigo, powder blue, smalt blue, steel blue, ultramarine blue, united nations blue, air force blue, brandeis blue, duke blue, majorelle blue, Prussian blue, yale blue, pigment blue, blue bell, wild blue yonder, pacific blue, blizzard blue, ultra blue, blueberry blue, blue bird blue, icy blue, snowflake blue, stone blue, etc. Add more if you know any.Petty blue
It's blue. No doubt about it.
I need to know
they are blue because they are blue and printed
blue