#312B33

#312B33

Color Values

HEX

#312B33

RGB

49, 43, 51

HSL

285.0, 8.5%, 18.4%

HSV

285.0, 15.7%, 20.0%

CMYK

3.9%, 15.7%, 0.0%, 80.0%

OKLCH

0.2987 0.0165 317.7

Properties

Cool Dark Nearest: RAL 5008 Grey Blue

Color Harmonies

Complementary

#312B33

#2D332B

Analogous

#2D2B33

#332B31

#312B33

Triadic

#312B33

#33312B

#2B3331

Split Complementary

#312B33

#31332B

#2B332D

Tetradic

#312B33

#332D2B

#2D332B

#2B3133

Color Blindness Simulation

Original

#312B33

Protanopia

#2E2E31

Deuteranopia

#2F2F31

Tritanopia

#31302F

Achromatopsia

#2D2D2D

CSS Usage

background-color: #312B33;
color: #312B33;
border-color: #312B33;
Nearest Tailwind: Zinc 800 #27272A

Tailwind Shades

50
#F8F7F8
100
#EEECEE
200
#DDD8DE
300
#C4BDC7
400
#A599A9
500
#85758A
600
#6A5D6F
700
#554B59
800
#423A45
900
#322D34
950
#201C21

Contrast Checker

Text on white

13.78:1

AA Pass AAA Pass

Text on black

1.52:1

AA Fail AAA Fail

Related Articles

Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026
Tutorials

How to Choose Brand Colors: A Step-by-Step Guide

Jan 18, 2026