#3F4178

#3F4178

Color Values

HEX

#3F4178

RGB

63, 65, 120

HSL

237.9, 31.1%, 35.9%

HSV

237.9, 47.5%, 47.1%

CMYK

47.5%, 45.8%, 0.0%, 52.9%

OKLCH

0.4014 0.0914 279.9

Properties

Cool Dark Nearest: RAL 5017 Traffic Blue

Color Harmonies

Complementary

#3F4178

#78763F

Analogous

#3F5E78

#5A3F78

#3F4178

Triadic

#3F4178

#783F41

#41783F

Split Complementary

#3F4178

#785A3F

#5E783F

Tetradic

#3F4178

#783F5E

#78763F

#3F785A

Color Blindness Simulation

Original

#3F4178

Protanopia

#40406B

Deuteranopia

#404068

Tritanopia

#3F605E

Achromatopsia

#454545

CSS Usage

background-color: #3F4178;
color: #3F4178;
border-color: #3F4178;
Nearest Tailwind: Blue 950 #172554

Tailwind Shades

50
#F5F5F9
100
#E8E9F2
200
#D0D1E6
300
#AFB0D5
400
#8385BE
500
#585BA7
600
#464886
700
#383A6B
800
#2C2D54
900
#23243E
950
#161727

Contrast Checker

Text on white

9.38:1

AA Pass AAA Pass

Text on black

2.24:1

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