#3F4888

#3F4888

Color Values

HEX

#3F4888

RGB

63, 72, 136

HSL

232.6, 36.7%, 39.0%

HSV

232.6, 53.7%, 53.3%

CMYK

53.7%, 47.1%, 0.0%, 46.7%

OKLCH

0.4271 0.1057 275.0

Properties

Cool Dark Nearest: royalblue 4

Color Harmonies

Complementary

#3F4888

#887F3F

Analogous

#3F6C88

#5A3F88

#3F4888

Triadic

#3F4888

#883F48

#48883F

Split Complementary

#3F4888

#885A3F

#6C883F

Tetradic

#3F4888

#883F6C

#887F3F

#3F885A

Color Blindness Simulation

Original

#3F4888

Protanopia

#434379

Deuteranopia

#424275

Tritanopia

#3F6C6A

Achromatopsia

#4B4B4B

CSS Usage

background-color: #3F4888;
color: #3F4888;
border-color: #3F4888;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F5F6FA
100
#E8E9F3
200
#CED1E8
300
#ABB1D8
400
#7E87C3
500
#515CAE
600
#414A8B
700
#343B70
800
#282E57
900
#202440
950
#141729

Contrast Checker

Text on white

8.42:1

AA Pass AAA Pass

Text on black

2.49:1

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