#2B123F

#2B123F

Color Values

HEX

#2B123F

RGB

43, 18, 63

HSL

273.3, 55.6%, 15.9%

HSV

273.3, 71.4%, 24.7%

CMYK

31.7%, 71.4%, 0.0%, 75.3%

OKLCH

0.2453 0.0839 306.8

Properties

Cool Dark Nearest: RAL 5002 Ultramarine Blue

Color Harmonies

Complementary

#2B123F

#263F12

Analogous

#14123F

#3F123D

#2B123F

Triadic

#2B123F

#3F2B12

#123F2B

Split Complementary

#2B123F

#3D3F12

#123F14

Tetradic

#2B123F

#3F1412

#263F12

#123D3F

Color Blindness Simulation

Original

#2B123F

Protanopia

#202034

Deuteranopia

#222431

Tritanopia

#2A2C2A

Achromatopsia

#1B1B1B

CSS Usage

background-color: #2B123F;
color: #2B123F;
border-color: #2B123F;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F8F4FB
100
#EEE5F6
200
#DDC7EF
300
#C6A0E4
400
#A66CD5
500
#8739C6
600
#6C2D9F
700
#57247F
800
#441C63
900
#331849
950
#200F2E

Contrast Checker

Text on white

16.65:1

AA Pass AAA Pass

Text on black

1.26:1

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