#3F449B

#3F449B

Color Values

HEX

#3F449B

RGB

63, 68, 155

HSL

236.7, 42.2%, 42.7%

HSV

236.7, 59.4%, 60.8%

CMYK

59.4%, 56.1%, 0.0%, 39.2%

OKLCH

0.4326 0.1394 276.4

Properties

Cool Dark Nearest: slateblue 4

Color Harmonies

Complementary

#3F449B

#9B963F

Analogous

#3F729B

#683F9B

#3F449B

Triadic

#3F449B

#9B3F44

#449B3F

Split Complementary

#3F449B

#9B683F

#729B3F

Tetradic

#3F449B

#9B3F72

#9B963F

#3F9B68

Color Blindness Simulation

Original

#3F449B

Protanopia

#414186

Deuteranopia

#414081

Tritanopia

#3F7572

Achromatopsia

#494949

CSS Usage

background-color: #3F449B;
color: #3F449B;
border-color: #3F449B;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F5F5FA
100
#E7E7F4
200
#CCCEEA
300
#A8ABDC
400
#797DC8
500
#4A50B5
600
#3B4091
700
#2F3374
800
#25285B
900
#1E2043
950
#13142A

Contrast Checker

Text on white

8.36:1

AA Pass AAA Pass

Text on black

2.51:1

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