#37373F

#37373F

Color Values

HEX

#37373F

RGB

55, 55, 63

HSL

240.0, 6.8%, 23.1%

HSV

240.0, 12.7%, 24.7%

CMYK

12.7%, 12.7%, 0.0%, 75.3%

OKLCH

0.3399 0.0139 285.6

Properties

Cool Dark Nearest: RAL 7026 Granite Grey

Color Harmonies

Complementary

#37373F

#3F3F37

Analogous

#373B3F

#3B373F

#37373F

Triadic

#37373F

#3F3737

#373F37

Split Complementary

#37373F

#3F3B37

#3B3F37

Tetradic

#37373F

#3F373B

#3F3F37

#373F3B

Color Blindness Simulation

Original

#37373F

Protanopia

#37373D

Deuteranopia

#37373D

Tritanopia

#373C3B

Achromatopsia

#383838

CSS Usage

background-color: #37373F;
color: #37373F;
border-color: #37373F;
Nearest Tailwind: Zinc 700 #3F3F46

Tailwind Shades

50
#F7F7F8
100
#ECECEE
200
#D9D9DE
300
#BEBEC6
400
#9A9AA7
500
#777788
600
#5F5F6D
700
#4C4C57
800
#3B3B44
900
#2D2D33
950
#1D1D20

Contrast Checker

Text on white

11.79:1

AA Pass AAA Pass

Text on black

1.78:1

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