#3F749C

#3F749C

Color Values

HEX

#3F749C

RGB

63, 116, 156

HSL

205.8, 42.5%, 42.9%

HSV

205.8, 59.6%, 61.2%

CMYK

59.6%, 25.6%, 0.0%, 38.8%

OKLCH

0.5397 0.0847 243.0

Properties

Cool Dark Nearest: steelblue 4

Color Harmonies

Complementary

#3F749C

#9C673F

Analogous

#3F9C95

#3F459C

#3F749C

Triadic

#3F749C

#9C3F74

#749C3F

Split Complementary

#3F749C

#9C3F45

#9C953F

Tetradic

#3F749C

#953F9C

#9C673F

#459C3F

Color Blindness Simulation

Original

#3F749C

Protanopia

#565692

Deuteranopia

#534F90

Tritanopia

#428B89

Achromatopsia

#6C6C6C

CSS Usage

background-color: #3F749C;
color: #3F749C;
border-color: #3F749C;
Nearest Tailwind: Sky 700 #0369A1

Tailwind Shades

50
#F5F8FA
100
#E7EEF4
200
#CCDDEA
300
#A8C5DC
400
#79A6C9
500
#4987B6
600
#3B6C91
700
#2F5674
800
#25445B
900
#1E3343
950
#13202A

Contrast Checker

Text on white

5.01:1

AA Pass AAA Fail

Text on black

4.19:1

AA Fail AAA Fail

Related Articles

Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026
Tutorials

How to Choose Brand Colors: A Step-by-Step Guide

Jan 18, 2026