Or manganese blue?

Or how do I blue thee, let me count the ways..

Periwinkle

Neon blue

Bluebonnet

Twin blue

Smalt

Savoy blue

Medium blue

Process blue

Liberty

Egyptian blue

International Klein Blue

Ultramarine

Dark blue

Picotee blue

Navy blue

Midnight blue

Independence

Cool black

Robin Egg Blue

Space cadet

Baby blue

Light blue

Powder blue

Uranian blue

Argentinian blue

Ruddy blue

Celtic blue

Spanish blue

Bleu de France

Delft blue

Duck blue

Resolution blue

Polynesian blue

Moroccan blue

Sapphire

Fluorescent blue

Teal blue