Steel Gray

# 221D33

East Bay

# 57497F

Martinique

is a unsaturated dark cold blue

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.
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Goes well with complementary color

Verdigris

# 4F5933

or triadic complementary

Killarney

# 33593D

and triadic complementary

Millbrook

# 593D33

To a colorblind person appears

Tundora

# 434343