#121A2D

#121A2D

Color Values

HEX

#121A2D

RGB

18, 26, 45

HSL

222.2, 42.9%, 12.4%

HSV

222.2, 60.0%, 17.6%

CMYK

60.0%, 42.2%, 0.0%, 82.4%

OKLCH

0.2205 0.0393 265.9

Properties

Cool Dark Nearest: RAL 5003 Sapphire Blue

Color Harmonies

Complementary

#121A2D

#2D2512

Analogous

#12282D

#18122D

#121A2D

Triadic

#121A2D

#2D121A

#1A2D12

Split Complementary

#121A2D

#2D1812

#282D12

Tetradic

#121A2D

#2D1228

#2D2512

#122D18

Color Blindness Simulation

Original

#121A2D

Protanopia

#151628

Deuteranopia

#151427

Tritanopia

#122524

Achromatopsia

#1A1A1A

CSS Usage

background-color: #121A2D;
color: #121A2D;
border-color: #121A2D;
Nearest Tailwind: Slate 900 #0F172A

Tailwind Shades

50
#F5F6FA
100
#E7EBF4
200
#CCD5EB
300
#A8B7DC
400
#7890C9
500
#4969B6
600
#3A5492
700
#2F4375
800
#24355B
900
#1E2943
950
#131A2A

Contrast Checker

Text on white

17.34:1

AA Pass AAA Pass

Text on black

1.21:1

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