#231D22

#231D22

Color Values

HEX

#231D22

RGB

35, 29, 34

HSL

310.0, 9.4%, 12.5%

HSV

310.0, 17.1%, 13.7%

CMYK

0.0%, 17.1%, 2.9%, 86.3%

OKLCH

0.2398 0.013 331.5

Properties

Warm Dark Nearest: RAL 5011 Steel Blue

Color Harmonies

Complementary

#231D22

#1D231E

Analogous

#211D23

#231D1F

#231D22

Triadic

#231D22

#22231D

#1D2223

Split Complementary

#231D22

#1F231D

#1D2321

Tetradic

#231D22

#23211D

#1D231E

#1D1F23

Color Blindness Simulation

Original

#231D22

Protanopia

#202021

Deuteranopia

#212120

Tritanopia

#232020

Achromatopsia

#1F1F1F

CSS Usage

background-color: #231D22;
color: #231D22;
border-color: #231D22;
Nearest Tailwind: Zinc 900 #18181B

Tailwind Shades

50
#F8F7F8
100
#EFECEE
200
#DFD8DE
300
#C8BCC6
400
#AA98A7
500
#8B7487
600
#705C6C
700
#594A57
800
#463A44
900
#352C33
950
#211C20

Contrast Checker

Text on white

16.53:1

AA Pass AAA Pass

Text on black

1.27:1

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