#3F79AE

#3F79AE

Color Values

HEX

#3F79AE

RGB

63, 121, 174

HSL

208.6, 46.8%, 46.5%

HSV

208.6, 63.8%, 68.2%

CMYK

63.8%, 30.5%, 0.0%, 31.8%

OKLCH

0.5609 0.1027 248.2

Properties

Cool Dark Nearest: steelblue

Color Harmonies

Complementary

#3F79AE

#AE743F

Analogous

#3FAEAB

#3F42AE

#3F79AE

Triadic

#3F79AE

#AE3F79

#79AE3F

Split Complementary

#3F79AE

#AE3F42

#AEAB3F

Tetradic

#3F79AE

#AB3FAE

#AE743F

#42AE3F

Color Blindness Simulation

Original

#3F79AE

Protanopia

#5859A1

Deuteranopia

#55509E

Tritanopia

#429795

Achromatopsia

#707070

CSS Usage

background-color: #3F79AE;
color: #3F79AE;
border-color: #3F79AE;
Nearest Tailwind: Sky 700 #0369A1

Tailwind Shades

50
#F4F7FA
100
#E6EDF4
200
#CBDCEC
300
#A5C3DE
400
#74A3CD
500
#4482BB
600
#366896
700
#2B5378
800
#22415E
900
#1C3145
950
#121F2B

Contrast Checker

Text on white

4.61:1

AA Pass AAA Fail

Text on black

4.56:1

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