#181B9C

#181B9C

Color Values

HEX

#181B9C

RGB

24, 27, 156

HSL

238.6, 73.3%, 35.3%

HSV

238.6, 84.6%, 61.2%

CMYK

84.6%, 82.7%, 0.0%, 38.8%

OKLCH

0.343 0.1969 268.9

Properties

Cool Dark Nearest: darkblue

Color Harmonies

Complementary

#181B9C

#9C9918

Analogous

#185D9C

#57189C

#181B9C

Triadic

#181B9C

#9C181B

#1B9C18

Split Complementary

#181B9C

#9C5718

#5D9C18

Tetradic

#181B9C

#9C185D

#9C9918

#189C57

Color Blindness Simulation

Original

#181B9C

Protanopia

#19197D

Deuteranopia

#191975

Tritanopia

#18645F

Achromatopsia

#242424

CSS Usage

background-color: #181B9C;
color: #181B9C;
border-color: #181B9C;
Nearest Tailwind: Indigo 800 #3730A3

Tailwind Shades

50
#F3F3FC
100
#E2E3F8
200
#C1C2F5
300
#9597EF
400
#5B5FE6
500
#2226DD
600
#1B1FB1
700
#16198D
800
#11136E
900
#101250
950
#0A0B33

Contrast Checker

Text on white

12.53:1

AA Pass AAA Pass

Text on black

1.68:1

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