#231D29

#231D29

Color Values

HEX

#231D29

RGB

35, 29, 41

HSL

270.0, 17.1%, 13.7%

HSV

270.0, 29.3%, 16.1%

CMYK

14.6%, 29.3%, 0.0%, 83.9%

OKLCH

0.2431 0.024 307.4

Properties

Cool Dark Nearest: RAL 5011 Steel Blue

Color Harmonies

Complementary

#231D29

#23291D

Analogous

#1D1D29

#291D29

#231D29

Triadic

#231D29

#29231D

#1D2923

Split Complementary

#231D29

#29291D

#1D291D

Tetradic

#231D29

#291D1D

#23291D

#1D2929

Color Blindness Simulation

Original

#231D29

Protanopia

#202026

Deuteranopia

#212125

Tritanopia

#232423

Achromatopsia

#1F1F1F

CSS Usage

background-color: #231D29;
color: #231D29;
border-color: #231D29;
Nearest Tailwind: Gray 900 #111827

Tailwind Shades

50
#F7F6F8
100
#EDEBF0
200
#DBD5E1
300
#C2B7CC
400
#A191B1
500
#806A95
600
#665577
700
#524460
800
#40354B
900
#302938
950
#1F1A23

Contrast Checker

Text on white

16.42:1

AA Pass AAA Pass

Text on black

1.28:1

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