#3F4787

#3F4787

Color Values

HEX

#3F4787

RGB

63, 71, 135

HSL

233.3, 36.4%, 38.8%

HSV

233.3, 53.3%, 52.9%

CMYK

53.3%, 47.4%, 0.0%, 47.1%

OKLCH

0.4243 0.1056 275.6

Properties

Cool Dark Nearest: royalblue 4

Color Harmonies

Complementary

#3F4787

#877F3F

Analogous

#3F6B87

#5B3F87

#3F4787

Triadic

#3F4787

#873F47

#47873F

Split Complementary

#3F4787

#875B3F

#6B873F

Tetradic

#3F4787

#873F6B

#877F3F

#3F875B

Color Blindness Simulation

Original

#3F4787

Protanopia

#424378

Deuteranopia

#424174

Tritanopia

#3F6B69

Achromatopsia

#4A4A4A

CSS Usage

background-color: #3F4787;
color: #3F4787;
border-color: #3F4787;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F5F6FA
100
#E8E9F3
200
#CED1E8
300
#ACB0D8
400
#7E86C3
500
#515BAE
600
#41498B
700
#343B6F
800
#292E57
900
#212440
950
#151729

Contrast Checker

Text on white

8.53:1

AA Pass AAA Pass

Text on black

2.46:1

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