#313138

#313138

Color Values

HEX

#313138

RGB

49, 49, 56

HSL

240.0, 6.7%, 20.6%

HSV

240.0, 12.5%, 22.0%

CMYK

12.5%, 12.5%, 0.0%, 78.0%

OKLCH

0.316 0.0124 285.7

Properties

Cool Dark Nearest: RAL 7026 Granite Grey

Color Harmonies

Complementary

#313138

#383831

Analogous

#313538

#353138

#313138

Triadic

#313138

#383131

#313831

Split Complementary

#313138

#383531

#353831

Tetradic

#313138

#383135

#383831

#313835

Color Blindness Simulation

Original

#313138

Protanopia

#313136

Deuteranopia

#313136

Tritanopia

#313535

Achromatopsia

#323232

CSS Usage

background-color: #313138;
color: #313138;
border-color: #313138;
Nearest Tailwind: Zinc 800 #27272A

Tailwind Shades

50
#F7F7F8
100
#ECECEE
200
#D9D9DE
300
#BEBEC6
400
#9A9AA7
500
#777788
600
#5F5F6D
700
#4C4C57
800
#3B3B44
900
#2E2E33
950
#1D1D20

Contrast Checker

Text on white

12.91:1

AA Pass AAA Pass

Text on black

1.63:1

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