#377ACB

#377ACB

Color Values

HEX

#377ACB

RGB

55, 122, 203

HSL

212.8, 58.7%, 50.6%

HSV

212.8, 72.9%, 79.6%

CMYK

72.9%, 39.9%, 0.0%, 20.4%

OKLCH

0.5767 0.1423 254.9

Properties

Cool Light Nearest: NCS S 1060-B Bright Blue

Color Harmonies

Complementary

#377ACB

#CB8837

Analogous

#37C4CB

#3E37CB

#377ACB

Triadic

#377ACB

#CB377A

#7ACB37

Split Complementary

#377ACB

#CB3E37

#C4CB37

Tetradic

#377ACB

#CB37C4

#CB8837

#37CB3E

Color Blindness Simulation

Original

#377ACB

Protanopia

#5455B7

Deuteranopia

#504BB3

Tritanopia

#3AA8A5

Achromatopsia

#727272

CSS Usage

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

Tailwind Shades

50
#F4F7FB
100
#E4ECF6
200
#C6D9F0
300
#9EBEE6
400
#699BD8
500
#3579CA
600
#2A60A2
700
#224D81
800
#1A3C65
900
#172E4A
950
#0E1D2F

Contrast Checker

Text on white

4.37:1

AA Fail AAA Fail

Text on black

4.81:1

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