#3F4261

#3F4261

Color Values

HEX

#3F4261

RGB

63, 66, 97

HSL

234.7, 21.2%, 31.4%

HSV

234.7, 35.1%, 38.0%

CMYK

35.1%, 32.0%, 0.0%, 62.0%

OKLCH

0.3901 0.0526 279.4

Properties

Cool Dark Nearest: RAL 5000 Violet Blue

Color Harmonies

Complementary

#3F4261

#615E3F

Analogous

#3F5361

#4D3F61

#3F4261

Triadic

#3F4261

#613F42

#42613F

Split Complementary

#3F4261

#614D3F

#53613F

Tetradic

#3F4261

#613F53

#615E3F

#3F614D

Color Blindness Simulation

Original

#3F4261

Protanopia

#40405A

Deuteranopia

#404058

Tritanopia

#3F5452

Achromatopsia

#444444

CSS Usage

background-color: #3F4261;
color: #3F4261;
border-color: #3F4261;
Nearest Tailwind: Slate 700 #334155

Tailwind Shades

50
#F6F6F9
100
#EAEBF0
200
#D4D5E3
300
#B5B7CF
400
#8D90B5
500
#64699B
600
#50547C
700
#404363
800
#32354D
900
#27293A
950
#191A24

Contrast Checker

Text on white

9.71:1

AA Pass AAA Pass

Text on black

2.16:1

AA Fail AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026