#3F6F91

#3F6F91

Color Values

HEX

#3F6F91

RGB

63, 111, 145

HSL

204.9, 39.4%, 40.8%

HSV

204.9, 56.6%, 56.9%

CMYK

56.6%, 23.4%, 0.0%, 43.1%

OKLCH

0.5223 0.0752 241.1

Properties

Cool Dark Nearest: skyblue 4

Color Harmonies

Complementary

#3F6F91

#91613F

Analogous

#3F918A

#3F4691

#3F6F91

Triadic

#3F6F91

#913F6F

#6F913F

Split Complementary

#3F6F91

#913F46

#918A3F

Tetradic

#3F6F91

#8A3F91

#91613F

#46913F

Color Blindness Simulation

Original

#3F6F91

Protanopia

#545489

Deuteranopia

#514D87

Tritanopia

#418281

Achromatopsia

#676767

CSS Usage

background-color: #3F6F91;
color: #3F6F91;
border-color: #3F6F91;
Nearest Tailwind: Cyan 700 #0E7490

Tailwind Shades

50
#F5F8FA
100
#E7EEF3
200
#CDDEE9
300
#AAC6DA
400
#7BA7C6
500
#4D88B2
600
#3E6D8E
700
#315772
800
#274459
900
#1F3342
950
#142029

Contrast Checker

Text on white

5.39:1

AA Pass AAA Fail

Text on black

3.89:1

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