#3F4F72

#3F4F72

Color Values

HEX

#3F4F72

RGB

63, 79, 114

HSL

221.2, 28.8%, 34.7%

HSV

221.2, 44.7%, 44.7%

CMYK

44.7%, 30.7%, 0.0%, 55.3%

OKLCH

0.4296 0.0619 265.1

Properties

Cool Dark Nearest: RAL 5000 Violet Blue

Color Harmonies

Complementary

#3F4F72

#72623F

Analogous

#3F6872

#493F72

#3F4F72

Triadic

#3F4F72

#723F4F

#4F723F

Split Complementary

#3F4F72

#72493F

#68723F

Tetradic

#3F4F72

#723F68

#72623F

#3F7249

Color Blindness Simulation

Original

#3F4F72

Protanopia

#46466A

Deuteranopia

#454468

Tritanopia

#406361

Achromatopsia

#4E4E4E

CSS Usage

background-color: #3F4F72;
color: #3F4F72;
border-color: #3F4F72;
Nearest Tailwind: Slate 600 #475569

Tailwind Shades

50
#F5F7F9
100
#E9ECF2
200
#D1D7E6
300
#B0BBD3
400
#8597BC
500
#5B72A4
600
#495B83
700
#3A4969
800
#2D3952
900
#242C3D
950
#171C27

Contrast Checker

Text on white

8.16:1

AA Pass AAA Pass

Text on black

2.57:1

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