#37403D

#37403D

Color Values

HEX

#37403D

RGB

55, 64, 61

HSL

160.0, 7.6%, 23.3%

HSV

160.0, 14.1%, 25.1%

CMYK

14.1%, 0.0%, 4.7%, 74.9%

OKLCH

0.3622 0.013 173.5

Properties

Cool Dark Nearest: RAL 6012 Black Green

Color Harmonies

Complementary

#37403D

#40373A

Analogous

#374038

#373E40

#37403D

Triadic

#37403D

#3D3740

#403D37

Split Complementary

#37403D

#40373E

#403837

Tetradic

#37403D

#383740

#40373A

#3E4037

Color Blindness Simulation

Original

#37403D

Protanopia

#3B3B3E

Deuteranopia

#3A3A3E

Tritanopia

#373E3E

Achromatopsia

#3E3E3E

CSS Usage

background-color: #37403D;
color: #37403D;
border-color: #37403D;
Nearest Tailwind: Neutral 700 #404040

Tailwind Shades

50
#F7F8F8
100
#ECEEEE
200
#D9DEDC
300
#BDC6C3
400
#99A8A3
500
#768983
600
#5E6E69
700
#4B5854
800
#3B4541
900
#2D3432
950
#1D211F

Contrast Checker

Text on white

10.7:1

AA Pass AAA Pass

Text on black

1.96:1

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