#12002B

#12002B

Color Values

HEX

#12002B

RGB

18, 0, 43

HSL

265.1, 100.0%, 8.4%

HSV

265.1, 100.0%, 16.9%

CMYK

58.1%, 100.0%, 0.0%, 83.1%

OKLCH

0.1563 0.0849 296.9

Properties

Cool Dark Nearest: RAL 5002 Ultramarine Blue

Color Harmonies

Complementary

#12002B

#192B00

Analogous

#00032B

#27002B

#12002B

Triadic

#12002B

#2B1200

#002B12

Split Complementary

#12002B

#2B2700

#032B00

Tetradic

#12002B

#2B0003

#192B00

#002B27

Color Blindness Simulation

Original

#12002B

Protanopia

#0A0A21

Deuteranopia

#0B0D1E

Tritanopia

#111817

Achromatopsia

#070707

CSS Usage

background-color: #12002B;
color: #12002B;
border-color: #12002B;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F6F1FE
100
#EBDEFC
200
#D5B8FF
300
#B885FF
400
#9142FF
500
#6B00FF
600
#5500CC
700
#4400A3
800
#350080
900
#29055C
950
#1A033A

Contrast Checker

Text on white

19.8:1

AA Pass AAA Pass

Text on black

1.06:1

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