#37313B

#37313B

Color Values

HEX

#37313B

RGB

55, 49, 59

HSL

276.0, 9.3%, 21.2%

HSV

276.0, 16.9%, 23.1%

CMYK

6.8%, 16.9%, 0.0%, 76.9%

OKLCH

0.3234 0.0192 311.9

Properties

Cool Dark Nearest: RAL 7026 Granite Grey

Color Harmonies

Complementary

#37313B

#353B31

Analogous

#32313B

#3B313A

#37313B

Triadic

#37313B

#3B3731

#313B37

Split Complementary

#37313B

#3A3B31

#313B32

Tetradic

#37313B

#3B3231

#353B31

#313A3B

Color Blindness Simulation

Original

#37313B

Protanopia

#343439

Deuteranopia

#353538

Tritanopia

#373736

Achromatopsia

#333333

CSS Usage

background-color: #37313B;
color: #37313B;
border-color: #37313B;
Nearest Tailwind: Zinc 700 #3F3F46

Tailwind Shades

50
#F7F7F8
100
#EDECEF
200
#DCD8DF
300
#C3BCC7
400
#A298A9
500
#82748B
600
#685D6F
700
#534A59
800
#413A46
900
#312C35
950
#1F1C21

Contrast Checker

Text on white

12.61:1

AA Pass AAA Pass

Text on black

1.66:1

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