#3F4586

#3F4586

Color Values

HEX

#3F4586

RGB

63, 69, 134

HSL

234.9, 36.0%, 38.6%

HSV

234.9, 53.0%, 52.5%

CMYK

53.0%, 48.5%, 0.0%, 47.5%

OKLCH

0.4193 0.107 276.8

Properties

Cool Dark Nearest: royalblue 4

Color Harmonies

Complementary

#3F4586

#86803F

Analogous

#3F6886

#5C3F86

#3F4586

Triadic

#3F4586

#863F45

#45863F

Split Complementary

#3F4586

#865C3F

#68863F

Tetradic

#3F4586

#863F68

#86803F

#3F865C

Color Blindness Simulation

Original

#3F4586

Protanopia

#424276

Deuteranopia

#414172

Tritanopia

#3F6A67

Achromatopsia

#484848

CSS Usage

background-color: #3F4586;
color: #3F4586;
border-color: #3F4586;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F5F5FA
100
#E8E9F3
200
#CED1E8
300
#ACB0D8
400
#7F84C3
500
#5259AD
600
#41488B
700
#34396F
800
#292D57
900
#212340
950
#151629

Contrast Checker

Text on white

8.73:1

AA Pass AAA Pass

Text on black

2.41:1

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