#3F3F61

#3F3F61

Color Values

HEX

#3F3F61

RGB

63, 63, 97

HSL

240.0, 21.2%, 31.4%

HSV

240.0, 35.1%, 38.0%

CMYK

35.1%, 35.1%, 0.0%, 62.0%

OKLCH

0.3831 0.0575 283.4

Properties

Cool Dark Nearest: RAL 5000 Violet Blue

Color Harmonies

Complementary

#3F3F61

#61613F

Analogous

#3F5061

#503F61

#3F3F61

Triadic

#3F3F61

#613F3F

#3F613F

Split Complementary

#3F3F61

#61503F

#50613F

Tetradic

#3F3F61

#613F50

#61613F

#3F6150

Color Blindness Simulation

Original

#3F3F61

Protanopia

#3F3F59

Deuteranopia

#3F3F57

Tritanopia

#3F5251

Achromatopsia

#414141

CSS Usage

background-color: #3F3F61;
color: #3F3F61;
border-color: #3F3F61;
Nearest Tailwind: Slate 700 #334155

Tailwind Shades

50
#F6F6F9
100
#EAEAF0
200
#D4D4E3
300
#B5B5CF
400
#8D8DB5
500
#64649B
600
#50507C
700
#404063
800
#32324D
900
#27273A
950
#191924

Contrast Checker

Text on white

10.02:1

AA Pass AAA Pass

Text on black

2.09:1

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