#3B404F

#3B404F

Color Values

HEX

#3B404F

RGB

59, 64, 79

HSL

225.0, 14.5%, 27.1%

HSV

225.0, 25.3%, 31.0%

CMYK

25.3%, 19.0%, 0.0%, 69.0%

OKLCH

0.3729 0.0266 270.6

Properties

Cool Dark Nearest: RAL 7015 Slate Grey

Color Harmonies

Complementary

#3B404F

#4F4A3B

Analogous

#3B4A4F

#403B4F

#3B404F

Triadic

#3B404F

#4F3B40

#404F3B

Split Complementary

#3B404F

#4F403B

#4A4F3B

Tetradic

#3B404F

#4F3B4A

#4F4A3B

#3B4F40

Color Blindness Simulation

Original

#3B404F

Protanopia

#3D3D4B

Deuteranopia

#3D3C4A

Tritanopia

#3B4948

Achromatopsia

#404040

CSS Usage

background-color: #3B404F;
color: #3B404F;
border-color: #3B404F;
Nearest Tailwind: Gray 700 #374151

Tailwind Shades

50
#F6F7F8
100
#EBECEF
200
#D6D9E0
300
#B9BDCB
400
#939AAE
500
#6D7692
600
#575F75
700
#464C5D
800
#373B49
900
#2A2D37
950
#1B1D23

Contrast Checker

Text on white

10.33:1

AA Pass AAA Pass

Text on black

2.03:1

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