#121929

#121929

Color Values

HEX

#121929

RGB

18, 25, 41

HSL

221.7, 39.0%, 11.6%

HSV

221.7, 56.1%, 16.1%

CMYK

56.1%, 39.0%, 0.0%, 83.9%

OKLCH

0.215 0.0334 265.6

Properties

Cool Dark Nearest: RAL 5003 Sapphire Blue

Color Harmonies

Complementary

#121929

#292212

Analogous

#122529

#171229

#121929

Triadic

#121929

#291219

#192912

Split Complementary

#121929

#291712

#252912

Tetradic

#121929

#291225

#292212

#122917

Color Blindness Simulation

Original

#121929

Protanopia

#151525

Deuteranopia

#151424

Tritanopia

#122221

Achromatopsia

#191919

CSS Usage

background-color: #121929;
color: #121929;
border-color: #121929;
Nearest Tailwind: Gray 900 #111827

Tailwind Shades

50
#F5F6FA
100
#E7EBF3
200
#CDD6E9
300
#AAB8DA
400
#7C92C5
500
#4E6CB1
600
#3E568E
700
#324571
800
#273659
900
#1F2A41
950
#141A29

Contrast Checker

Text on white

17.55:1

AA Pass AAA Pass

Text on black

1.2:1

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