Gulf Blue

# 030E4F

Ultramarine

# 061C9B

Catalina Blue

is a very saturated 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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That goes well with

Yukon Gold

# 756404

or

Japanese Laurel

# 157504

and

Venetian Red

# 750415

To a colorblind person appears

Mine Shaft

# 303030