#3771AF

#3771AF

Color Values

HEX

#3771AF

RGB

55, 113, 175

HSL

211,0, 52,2%, 45,1%

HSV

211,0, 68,6%, 68,6%

CMYK

68,6%, 35,4%, 0,0%, 31,4%

OKLCH

0,5395 0,115 252,1

Properties

Cool Dark Nearest: RAL 5015 Sky Blue

Color Harmonies

Complementary

#3771AF

#AF7537

Analogous

#37ADAF

#3937AF

#3771AF

Triadic

#3771AF

#AF3771

#71AF37

Split Complementary

#3771AF

#AF3937

#ADAF37

Tetradic

#3771AF

#AF37AD

#AF7537

#37AF39

Color Blindness Simulation

Original

#3771AF

Protanopia

#5051A0

Deuteranopia

#4D489C

Tritanopia

#3A9492

Achromatopsia

#696969

CSS Usage

background-color: #3771AF;
color: #3771AF;
border-color: #3771AF;
Nearest Tailwind: Sky 700 #0369A1

Tailwind Shades

50
#F4F7FB
100
#E5EDF5
200
#C9DBEE
300
#A2C1E2
400
#6F9FD2
500
#3D7DC2
600
#31649B
700
#27507C
800
#1E3F61
900
#1A3047
950
#101E2D

Contrast Checker

Text on white

5,07:1

AA Pass AAA Fail

Text on black

4,14:1

AA Fail 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