#377BBF

#377BBF

Color Values

HEX

#377BBF

RGB

55, 123, 191

HSL

210.0, 55.3%, 48.2%

HSV

210.0, 71.2%, 74.9%

CMYK

71.2%, 35.6%, 0.0%, 25.1%

OKLCH

0.5718 0.1257 251.0

Properties

Cool Light Nearest: RAL 5015 Sky Blue

Color Harmonies

Complementary

#377BBF

#BF7B37

Analogous

#37BFBF

#3737BF

#377BBF

Triadic

#377BBF

#BF377B

#7BBF37

Split Complementary

#377BBF

#BF3737

#BFBF37

Tetradic

#377BBF

#BF37BF

#BF7B37

#37BF37

Color Blindness Simulation

Original

#377BBF

Protanopia

#5455AF

Deuteranopia

#504BAB

Tritanopia

#3AA29F

Achromatopsia

#717171

CSS Usage

background-color: #377BBF;
color: #377BBF;
border-color: #377BBF;
Nearest Tailwind: Sky 600 #0284C7

Tailwind Shades

50
#F4F7FB
100
#E5EDF6
200
#C8DBEF
300
#A0C2E4
400
#6CA1D5
500
#3980C6
600
#2E669E
700
#24527F
800
#1C4063
900
#183049
950
#0F1F2E

Contrast Checker

Text on white

4.42:1

AA Fail AAA Fail

Text on black

4.75:1

AA Pass AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026