Firefly

# 0B1C23

Astronaut

# 255A70

Nile Blue

is a saturated dark cold azure

Blue is a cool calming color that shows creativity and intelligence. It is a popular color among large corporations, hospitals and airlines. It is a color of loyalty, strength, wisdom and trust. Blue has a calming effect on the psyche. Blue is the color of the sky and the sea and is often used to represent those images.
Download swatch.ase

That goes well with

Brown Derby

# 492618

or

Thatch Green

# 3B4918

and

Wine Berry

# 49183B

To a colorblind person appears

Mine Shaft

# 343434