#2B103F

#2B103F

Color Values

HEX

#2B103F

RGB

43, 16, 63

HSL

274.5, 59.5%, 15.5%

HSV

274.5, 74.6%, 24.7%

CMYK

31.7%, 74.6%, 0.0%, 75.3%

OKLCH

0.2421 0.0873 307.5

Properties

Cool Dark Nearest: RAL 5002 Ultramarine Blue

Color Harmonies

Complementary

#2B103F

#243F10

Analogous

#14103F

#3F103C

#2B103F

Triadic

#2B103F

#3F2B10

#103F2B

Split Complementary

#2B103F

#3C3F10

#103F14

Tetradic

#2B103F

#3F1410

#243F10

#103C3F

Color Blindness Simulation

Original

#2B103F

Protanopia

#1F1F34

Deuteranopia

#212331

Tritanopia

#2A2B29

Achromatopsia

#191919

CSS Usage

background-color: #2B103F;
color: #2B103F;
border-color: #2B103F;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F8F3FB
100
#EFE4F6
200
#DEC6F1
300
#C79DE6
400
#A969D9
500
#8B34CB
600
#6F29A3
700
#592182
800
#451A66
900
#34174A
950
#210E2F

Contrast Checker

Text on white

16.82:1

AA Pass AAA Pass

Text on black

1.25:1

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