#181C71

#181C71

Color Values

HEX

#181C71

RGB

24, 28, 113

HSL

237.3, 65.0%, 26.9%

HSV

237.3, 78.8%, 44.3%

CMYK

78.8%, 75.2%, 0.0%, 55.7%

OKLCH

0.2935 0.142 271.6

Properties

Cool Dark Nearest: midnightblue

Color Harmonies

Complementary

#181C71

#716D18

Analogous

#184971

#411871

#181C71

Triadic

#181C71

#71181C

#1C7118

Split Complementary

#181C71

#714118

#497118

Tetradic

#181C71

#711849

#716D18

#187141

Color Blindness Simulation

Original

#181C71

Protanopia

#1A1A5C

Deuteranopia

#1A1958

Tritanopia

#184C49

Achromatopsia

#212121

CSS Usage

background-color: #181C71;
color: #181C71;
border-color: #181C71;
Nearest Tailwind: Violet 950 #2E1065

Tailwind Shades

50
#F3F4FC
100
#E3E4F7
200
#C4C6F3
300
#9A9EEA
400
#6369DE
500
#2D34D2
600
#242AA8
700
#1D2187
800
#161A69
900
#14174D
950
#0D0E31

Contrast Checker

Text on white

14.55:1

AA Pass AAA Pass

Text on black

1.44:1

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