#373840

#373840

Color Values

HEX

#373840

RGB

55, 56, 64

HSL

233.3, 7.6%, 23.3%

HSV

233.3, 14.1%, 25.1%

CMYK

14.1%, 12.5%, 0.0%, 74.9%

OKLCH

0.3429 0.014 280.0

Properties

Cool Dark Nearest: RAL 7026 Granite Grey

Color Harmonies

Complementary

#373840

#403F37

Analogous

#373C40

#3A3740

#373840

Triadic

#373840

#403738

#384037

Split Complementary

#373840

#403A37

#3C4037

Tetradic

#373840

#40373C

#403F37

#37403A

Color Blindness Simulation

Original

#373840

Protanopia

#37373E

Deuteranopia

#37373E

Tritanopia

#373D3C

Achromatopsia

#383838

CSS Usage

background-color: #373840;
color: #373840;
border-color: #373840;
Nearest Tailwind: Zinc 700 #3F3F46

Tailwind Shades

50
#F7F7F8
100
#ECECEE
200
#D9D9DE
300
#BDBEC6
400
#999BA8
500
#767889
600
#5E606E
700
#4B4D58
800
#3B3C45
900
#2D2E34
950
#1D1D21

Contrast Checker

Text on white

11.65:1

AA Pass AAA Pass

Text on black

1.8:1

AA Fail AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

Jan 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

Jan 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

Jan 15, 2026