#3B3F4F

#3B3F4F

Color Values

HEX

#3B3F4F

RGB

59, 63, 79

HSL

228.0, 14.5%, 27.1%

HSV

228.0, 25.3%, 31.0%

CMYK

25.3%, 20.3%, 0.0%, 69.0%

OKLCH

0.3705 0.028 274.0

Properties

Cool Dark Nearest: RAL 7015 Slate Grey

Color Harmonies

Complementary

#3B3F4F

#4F4B3B

Analogous

#3B494F

#413B4F

#3B3F4F

Triadic

#3B3F4F

#4F3B3F

#3F4F3B

Split Complementary

#3B3F4F

#4F413B

#494F3B

Tetradic

#3B3F4F

#4F3B49

#4F4B3B

#3B4F41

Color Blindness Simulation

Original

#3B3F4F

Protanopia

#3D3D4B

Deuteranopia

#3C3C4A

Tritanopia

#3B4847

Achromatopsia

#3F3F3F

CSS Usage

background-color: #3B3F4F;
color: #3B3F4F;
border-color: #3B3F4F;
Nearest Tailwind: Gray 700 #374151

Tailwind Shades

50
#F6F7F8
100
#EBECEF
200
#D6D8E0
300
#B9BCCB
400
#9398AE
500
#6D7492
600
#575D75
700
#464B5D
800
#373A49
900
#2A2D37
950
#1B1C23

Contrast Checker

Text on white

10.45:1

AA Pass AAA Pass

Text on black

2.01:1

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