#181542

#181542

Color Values

HEX

#181542

RGB

24, 21, 66

HSL

244.0, 51.7%, 17.1%

HSV

244.0, 68.2%, 25.9%

CMYK

63.6%, 68.2%, 0.0%, 74.1%

OKLCH

0.2309 0.0823 280.8

Properties

Cool Dark Nearest: RAL 5002 Ultramarine Blue

Color Harmonies

Complementary

#181542

#3F4215

Analogous

#152942

#2F1542

#181542

Triadic

#181542

#421815

#154218

Split Complementary

#181542

#422F15

#294215

Tetradic

#181542

#421529

#3F4215

#15422F

Color Blindness Simulation

Original

#181542

Protanopia

#171737

Deuteranopia

#171734

Tritanopia

#182F2D

Achromatopsia

#191919

CSS Usage

background-color: #181542;
color: #181542;
border-color: #181542;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F4F4FB
100
#E6E5F5
200
#CBC9EE
300
#A6A2E1
400
#7670D1
500
#463EC1
600
#38319B
700
#2D277C
800
#231F61
900
#1D1A47
950
#12102D

Contrast Checker

Text on white

17.15:1

AA Pass AAA Pass

Text on black

1.22:1

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