Ultramarine

# 2505A8

Blue

# 3607F4

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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That goes well with

Citrus

# A6CE06

or

Malachite

# 06CE2E

and

Grenadier

# CE2E06

To a colorblind person appears

Scorpion

# 565656