#3F4690

#3F4690

Color Values

HEX

#3F4690

RGB

63, 70, 144

HSL

234.8, 39.1%, 40.6%

HSV

234.8, 56.2%, 56.5%

CMYK

56.2%, 51.4%, 0.0%, 43.5%

OKLCH

0.4284 0.1206 276.0

Properties

Cool Dark Nearest: royalblue 4

Color Harmonies

Complementary

#3F4690

#90893F

Analogous

#3F6F90

#613F90

#3F4690

Triadic

#3F4690

#903F46

#46903F

Split Complementary

#3F4690

#90613F

#6F903F

Tetradic

#3F4690

#903F6F

#90893F

#3F9061

Color Blindness Simulation

Original

#3F4690

Protanopia

#42427E

Deuteranopia

#42417A

Tritanopia

#3F706D

Achromatopsia

#4A4A4A

CSS Usage

background-color: #3F4690;
color: #3F4690;
border-color: #3F4690;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F5F5FA
100
#E7E8F3
200
#CDD0E9
300
#AAAEDA
400
#7C82C6
500
#4E56B1
600
#3E458E
700
#323772
800
#272B59
900
#1F2241
950
#141629

Contrast Checker

Text on white

8.43:1

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