Ultramarine

# 0812A0

Blue

# 0B1AED

Dark Blue

is a very saturated very light 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

Rio Grande

# C6BA09

or triadic complementary

Green

# 16C609

and triadic complementary

Monza

# C60916

To a colorblind person appears

Tundora

# 4c4c4c